diff --git a/src/com/android/settings/DateTimeSettings.java b/src/com/android/settings/DateTimeSettings.java
index f1edbb9..64f42a0 100644
--- a/src/com/android/settings/DateTimeSettings.java
+++ b/src/com/android/settings/DateTimeSettings.java
@@ -87,6 +87,12 @@
         mAutoTimePref = (CheckBoxPreference) findPreference(KEY_AUTO_TIME);
         mAutoTimePref.setChecked(autoTimeEnabled);
         mAutoTimeZonePref = (CheckBoxPreference) findPreference(KEY_AUTO_TIME_ZONE);
+        // Override auto-timezone if it's a wifi-only device.
+        // TODO: Remove this when auto-timezone is implemented based on wifi-location.
+        if (Utils.isWifiOnly()) {
+            getPreferenceScreen().removePreference(mAutoTimeZonePref);
+            autoTimeZoneEnabled = false;
+        }
         mAutoTimeZonePref.setChecked(autoTimeZoneEnabled);
 
         mTimePref = findPreference("time");
@@ -125,7 +131,6 @@
         mTimeZone.setEnabled(!autoTimeZoneEnabled);
     }
 
-
     @Override
     public void onResume() {
         super.onResume();
diff --git a/src/com/android/settings/DeviceInfoSettings.java b/src/com/android/settings/DeviceInfoSettings.java
index 2bd8610..c3fe955 100644
--- a/src/com/android/settings/DeviceInfoSettings.java
+++ b/src/com/android/settings/DeviceInfoSettings.java
@@ -39,6 +39,7 @@
 import java.util.regex.Pattern;
 
 public class DeviceInfoSettings extends SettingsPreferenceFragment {
+
     private static final String TAG = "DeviceInfoSettings";
 
     private static final String KEY_CONTAINER = "container";
@@ -49,6 +50,11 @@
     private static final String KEY_COPYRIGHT = "copyright";
     private static final String KEY_SYSTEM_UPDATE_SETTINGS = "system_update_settings";
     private static final String PROPERTY_URL_SAFETYLEGAL = "ro.url.safetylegal";
+    private static final String KEY_KERNEL_VERSION = "kernel_version";
+    private static final String KEY_BUILD_NUMBER = "build_number";
+    private static final String KEY_DEVICE_MODEL = "device_model";
+    private static final String KEY_BASEBAND_VERSION = "baseband_version";
+    private static final String KEY_FIRMWARE_VERSION = "firmware_version";
 
     long[] mHits = new long[3];
 
@@ -69,17 +75,22 @@
             getPreferenceScreen().removePreference(findPreference("system_tutorial"));
         }
 
-        setStringSummary("firmware_version", Build.VERSION.RELEASE);
-        findPreference("firmware_version").setEnabled(true);
-        setValueSummary("baseband_version", "gsm.version.baseband");
-        setStringSummary("device_model", Build.MODEL);
-        setStringSummary("build_number", Build.DISPLAY);
-        findPreference("kernel_version").setSummary(getFormattedKernelVersion());
+        setStringSummary(KEY_FIRMWARE_VERSION, Build.VERSION.RELEASE);
+        findPreference(KEY_FIRMWARE_VERSION).setEnabled(true);
+        setValueSummary(KEY_BASEBAND_VERSION, "gsm.version.baseband");
+        setStringSummary(KEY_DEVICE_MODEL, Build.MODEL);
+        setStringSummary(KEY_BUILD_NUMBER, Build.DISPLAY);
+        findPreference(KEY_KERNEL_VERSION).setSummary(getFormattedKernelVersion());
 
         // Remove Safety information preference if PROPERTY_URL_SAFETYLEGAL is not set
         removePreferenceIfPropertyMissing(getPreferenceScreen(), "safetylegal",
                 PROPERTY_URL_SAFETYLEGAL);
 
+        // Remove Baseband version if wifi-only device
+        if (Utils.isWifiOnly()) {
+            getPreferenceScreen().removePreference(findPreference(KEY_BASEBAND_VERSION));
+        }
+
         /*
          * Settings is a generic app and should not contain any device-specific
          * info.
@@ -107,7 +118,7 @@
 
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
-        if (preference.getKey().equals("firmware_version")) {
+        if (preference.getKey().equals(KEY_FIRMWARE_VERSION)) {
             System.arraycopy(mHits, 1, mHits, 0, mHits.length-1);
             mHits[mHits.length-1] = SystemClock.uptimeMillis();
             if (mHits[0] >= (SystemClock.uptimeMillis()-500)) {
diff --git a/src/com/android/settings/Utils.java b/src/com/android/settings/Utils.java
index dd80222..18c6159 100644
--- a/src/com/android/settings/Utils.java
+++ b/src/com/android/settings/Utils.java
@@ -25,6 +25,8 @@
 import android.content.res.Resources;
 import android.content.res.Resources.NotFoundException;
 import android.graphics.drawable.Drawable;
+import android.net.ConnectivityManager;
+import android.net.LinkProperties;
 import android.os.Bundle;
 import android.os.SystemProperties;
 import android.preference.Preference;
@@ -33,6 +35,8 @@
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 
+import java.net.InetAddress;
+import java.util.Iterator;
 import java.util.List;
 
 public class Utils {
@@ -282,4 +286,26 @@
     public static boolean isWifiOnly() {
         return "wifi-only".equals(SystemProperties.get("ro.carrier"));
     }
+
+    /**
+     * Returns the WIFI IP Addresses, if any, taking into account IPv4 and IPv6 style addresses.
+     * @param context the application context
+     * @return the formatted and comma-separated IP addresses, or null if none.
+     */
+    public static String getWifiIpAddresses(Context context) {
+        ConnectivityManager cm = (ConnectivityManager)
+                context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        LinkProperties prop = cm.getLinkProperties(ConnectivityManager.TYPE_WIFI);
+        if (prop == null) return null;
+        Iterator<InetAddress> iter = prop.getAddresses().iterator();
+        // If there are no entries, return null
+        if (!iter.hasNext()) return null;
+        // Concatenate all available addresses, comma separated
+        String addresses = "";
+        while (iter.hasNext()) {
+            addresses += iter.next().getHostAddress();
+            if (iter.hasNext()) addresses += ", ";
+        }
+        return addresses;
+    }
 }
diff --git a/src/com/android/settings/deviceinfo/Status.java b/src/com/android/settings/deviceinfo/Status.java
index 2dd6ecd..9e3b47c 100644
--- a/src/com/android/settings/deviceinfo/Status.java
+++ b/src/com/android/settings/deviceinfo/Status.java
@@ -64,6 +64,7 @@
  */
 public class Status extends PreferenceActivity {
 
+    private static final String KEY_DATA_STATE = "data_state";
     private static final String KEY_SERVICE_STATE = "service_state";
     private static final String KEY_OPERATOR_NAME = "operator_name";
     private static final String KEY_ROAMING_STATE = "roaming_state";
@@ -77,10 +78,26 @@
     private static final String KEY_SIGNAL_STRENGTH = "signal_strength";
     private static final String KEY_BATTERY_STATUS = "battery_status";
     private static final String KEY_BATTERY_LEVEL = "battery_level";
+    private static final String KEY_WIFI_IP_ADDRESS = "wifi_ip_address";
     private static final String KEY_WIFI_MAC_ADDRESS = "wifi_mac_address";
     private static final String KEY_BT_ADDRESS = "bt_address";
     private static final String KEY_SERIAL_NUMBER = "serial_number";
 
+    private static final String[] PHONE_RELATED_ENTRIES = {
+        KEY_DATA_STATE,
+        KEY_SERVICE_STATE,
+        KEY_OPERATOR_NAME,
+        KEY_ROAMING_STATE,
+        KEY_NETWORK_TYPE,
+        KEY_PHONE_NUMBER,
+        KEY_IMEI,
+        KEY_IMEI_SV,
+        KEY_PRL_VERSION,
+        KEY_MIN_NUMBER,
+        KEY_MEID_NUMBER,
+        KEY_SIGNAL_STRENGTH
+    };
+
     private static final int EVENT_SIGNAL_STRENGTH_CHANGED = 200;
     private static final int EVENT_SERVICE_STATE_CHANGED = 300;
 
@@ -200,42 +217,49 @@
         mSignalStrength = findPreference(KEY_SIGNAL_STRENGTH);
         mUptime = findPreference("up_time");
 
-        //NOTE "imei" is the "Device ID" since it represents the IMEI in GSM and the MEID in CDMA
-        if (mPhone.getPhoneName().equals("CDMA")) {
-            setSummaryText(KEY_MEID_NUMBER, mPhone.getMeid());
-            setSummaryText(KEY_MIN_NUMBER, mPhone.getCdmaMin());
-            setSummaryText(KEY_PRL_VERSION, mPhone.getCdmaPrlVersion());
-
-            // device is not GSM/UMTS, do not display GSM/UMTS features
-            // check Null in case no specified preference in overlay xml
-            removePreferenceFromScreen(KEY_IMEI);
-            removePreferenceFromScreen(KEY_IMEI_SV);
+        if (Utils.isWifiOnly()) {
+            for (String key : PHONE_RELATED_ENTRIES) {
+                removePreferenceFromScreen(key);
+            }
         } else {
-            setSummaryText(KEY_IMEI, mPhone.getDeviceId());
+            // NOTE "imei" is the "Device ID" since it represents
+            //  the IMEI in GSM and the MEID in CDMA
+            if (mPhone.getPhoneName().equals("CDMA")) {
+                setSummaryText(KEY_MEID_NUMBER, mPhone.getMeid());
+                setSummaryText(KEY_MIN_NUMBER, mPhone.getCdmaMin());
+                setSummaryText(KEY_PRL_VERSION, mPhone.getCdmaPrlVersion());
 
-            setSummaryText(KEY_IMEI_SV,
-                    ((TelephonyManager) getSystemService(TELEPHONY_SERVICE))
-                        .getDeviceSoftwareVersion());
+                // device is not GSM/UMTS, do not display GSM/UMTS features
+                // check Null in case no specified preference in overlay xml
+                removePreferenceFromScreen(KEY_IMEI);
+                removePreferenceFromScreen(KEY_IMEI_SV);
+            } else {
+                setSummaryText(KEY_IMEI, mPhone.getDeviceId());
 
-            // device is not CDMA, do not display CDMA features
-            // check Null in case no specified preference in overlay xml
-            removePreferenceFromScreen(KEY_PRL_VERSION);
-            removePreferenceFromScreen(KEY_MEID_NUMBER);
-            removePreferenceFromScreen(KEY_MIN_NUMBER);
+                setSummaryText(KEY_IMEI_SV,
+                        ((TelephonyManager) getSystemService(TELEPHONY_SERVICE))
+                            .getDeviceSoftwareVersion());
+
+                // device is not CDMA, do not display CDMA features
+                // check Null in case no specified preference in overlay xml
+                removePreferenceFromScreen(KEY_PRL_VERSION);
+                removePreferenceFromScreen(KEY_MEID_NUMBER);
+                removePreferenceFromScreen(KEY_MIN_NUMBER);
+            }
+
+            String rawNumber = mPhone.getLine1Number();  // may be null or empty
+            String formattedNumber = null;
+            if (!TextUtils.isEmpty(rawNumber)) {
+                formattedNumber = PhoneNumberUtils.formatNumber(rawNumber);
+            }
+            // If formattedNumber is null or empty, it'll display as "Unknown".
+            setSummaryText(KEY_PHONE_NUMBER, formattedNumber);
+
+            mPhoneStateReceiver = new PhoneStateIntentReceiver(this, mHandler);
+            mPhoneStateReceiver.notifySignalStrength(EVENT_SIGNAL_STRENGTH_CHANGED);
+            mPhoneStateReceiver.notifyServiceState(EVENT_SERVICE_STATE_CHANGED);
         }
 
-        String rawNumber = mPhone.getLine1Number();  // may be null or empty
-        String formattedNumber = null;
-        if (!TextUtils.isEmpty(rawNumber)) {
-            formattedNumber = PhoneNumberUtils.formatNumber(rawNumber);
-        }
-        // If formattedNumber is null or empty, it'll display as "Unknown".
-        setSummaryText(KEY_PHONE_NUMBER, formattedNumber);
-
-        mPhoneStateReceiver = new PhoneStateIntentReceiver(this, mHandler);
-        mPhoneStateReceiver.notifySignalStrength(EVENT_SIGNAL_STRENGTH_CHANGED);
-        mPhoneStateReceiver.notifyServiceState(EVENT_SERVICE_STATE_CHANGED);
-        
         setWifiStatus();
         setBtStatus();
 
@@ -251,16 +275,17 @@
     protected void onResume() {
         super.onResume();
 
-        mPhoneStateReceiver.registerIntent();
-        registerReceiver(mBatteryInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
-        
-        updateSignalStrength();
-        updateServiceState(mPhone.getServiceState());
-        updateDataState();
-        
-        mTelephonyManager.listen(mPhoneStateListener,
-                  PhoneStateListener.LISTEN_DATA_CONNECTION_STATE);
+        if (!Utils.isWifiOnly()) {
+            mPhoneStateReceiver.registerIntent();
 
+            updateSignalStrength();
+            updateServiceState(mPhone.getServiceState());
+            updateDataState();
+
+            mTelephonyManager.listen(mPhoneStateListener,
+                      PhoneStateListener.LISTEN_DATA_CONNECTION_STATE);
+        }
+        registerReceiver(mBatteryInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
         mHandler.sendEmptyMessage(EVENT_UPDATE_STATS);
     }
     
@@ -268,8 +293,10 @@
     public void onPause() {
         super.onPause();
 
-        mPhoneStateReceiver.unregisterIntent();
-        mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
+        if (!Utils.isWifiOnly()) {
+            mPhoneStateReceiver.unregisterIntent();
+            mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
+        }
         unregisterReceiver(mBatteryInfoReceiver);
         mHandler.removeMessages(EVENT_UPDATE_STATS);
     }
@@ -333,7 +360,7 @@
                 break;
         }
         
-        setSummaryText("data_state", display);
+        setSummaryText(KEY_DATA_STATE, display);
     }
 
     private void updateServiceState(ServiceState serviceState) {
@@ -392,7 +419,7 @@
                         + r.getString(R.string.radioInfo_display_asu));
         }
     }
-    
+
     private void setWifiStatus() {
         WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
         WifiInfo wifiInfo = wifiManager.getConnectionInfo();
@@ -401,6 +428,14 @@
         String macAddress = wifiInfo == null ? null : wifiInfo.getMacAddress();
         wifiMacAddressPref.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress 
                 : getString(R.string.status_unavailable));
+
+        Preference wifiIpAddressPref = findPreference(KEY_WIFI_IP_ADDRESS);
+        String ipAddress = Utils.getWifiIpAddresses(this);
+        if (ipAddress != null) {
+            wifiIpAddressPref.setSummary(ipAddress);
+        } else {
+            wifiIpAddressPref.setSummary(getString(R.string.status_unavailable));
+        }
     }
 
     private void setBtStatus() {
diff --git a/src/com/android/settings/fuelgauge/BatteryHistoryChart.java b/src/com/android/settings/fuelgauge/BatteryHistoryChart.java
index 23107da..97ebf43 100644
--- a/src/com/android/settings/fuelgauge/BatteryHistoryChart.java
+++ b/src/com/android/settings/fuelgauge/BatteryHistoryChart.java
@@ -173,6 +173,7 @@
     int mBatHigh;
     boolean mHaveWifi;
     boolean mHaveGps;
+    boolean mHavePhoneSignal;
     
     public BatteryHistoryChart(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -377,7 +378,9 @@
         mNumHist = lastInteresting;
         mHaveGps = (aggrStates&HistoryItem.STATE_GPS_ON_FLAG) != 0;
         mHaveWifi = (aggrStates&HistoryItem.STATE_WIFI_RUNNING_FLAG) != 0;
-        
+        if (!com.android.settings.Utils.isWifiOnly()) {
+            mHavePhoneSignal = true;
+        }
         if (mHistEnd <= mHistStart) mHistEnd = mHistStart+1;
         mTotalDurationString = Utils.formatElapsedTime(getContext(), mHistEnd - mHistStart);
     }
@@ -421,7 +424,9 @@
         if (lastWakeLock) {
             mWakeLockPath.lineTo(w, h-mWakeLockOffset);
         }
-        mPhoneSignalChart.finish(w);
+        if (mHavePhoneSignal) {
+            mPhoneSignalChart.finish(w);
+        }
     }
     
     @Override
@@ -467,15 +472,19 @@
             mWifiRunningOffset = mWakeLockOffset + barOffset;
             mGpsOnOffset = mWifiRunningOffset + (mHaveWifi ? barOffset : 0);
             mPhoneSignalOffset = mGpsOnOffset + (mHaveGps ? barOffset : 0);
-            mLevelOffset = mPhoneSignalOffset + barOffset + mLineWidth;
-            mPhoneSignalChart.init(w);
+            mLevelOffset = mPhoneSignalOffset + (mHavePhoneSignal ? barOffset : 0) + mLineWidth;
+            if (mHavePhoneSignal) {
+                mPhoneSignalChart.init(w);
+            }
         } else {
             mScreenOnOffset = mGpsOnOffset = mWifiRunningOffset
                     = mWakeLockOffset = mLineWidth;
             mChargingOffset = mLineWidth*2;
             mPhoneSignalOffset = 0;
             mLevelOffset = mLineWidth*3;
-            mPhoneSignalChart.init(0);
+            if (mHavePhoneSignal) {
+                mPhoneSignalChart.init(0);
+            }
         }
 
         mBatLevelPath.reset();
@@ -597,7 +606,7 @@
                             lastWakeLock = wakeLock;
                         }
 
-                        if (mLargeMode) {
+                        if (mLargeMode && mHavePhoneSignal) {
                             int bin;
                             if (((rec.states&HistoryItem.STATE_PHONE_STATE_MASK)
                                     >> HistoryItem.STATE_PHONE_STATE_SHIFT)
@@ -661,8 +670,10 @@
         if (!mBatCriticalPath.isEmpty()) {
             canvas.drawPath(mBatCriticalPath, mBatteryCriticalPaint);
         }
-        int top = height-mPhoneSignalOffset - (mLineWidth/2);
-        mPhoneSignalChart.draw(canvas, top, mLineWidth);
+        int top = height - (mHavePhoneSignal ? mPhoneSignalOffset - (mLineWidth/2) : 0);
+        if (mHavePhoneSignal) {
+            mPhoneSignalChart.draw(canvas, top, mLineWidth);
+        }
         if (!mScreenOnPath.isEmpty()) {
             canvas.drawPath(mScreenOnPath, mScreenOnPaint);
         }
@@ -684,8 +695,10 @@
         }
 
         if (mLargeMode) {
-            canvas.drawText(mPhoneSignalLabel, 0,
-                    height - mPhoneSignalOffset - mTextDescent, mTextPaint);
+            if (mHavePhoneSignal) {
+                canvas.drawText(mPhoneSignalLabel, 0,
+                        height - mPhoneSignalOffset - mTextDescent, mTextPaint);
+            }
             if (mHaveGps) {
                 canvas.drawText(mGpsOnLabel, 0,
                         height - mGpsOnOffset - mTextDescent, mTextPaint);
diff --git a/src/com/android/settings/fuelgauge/PowerUsageSummary.java b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
index 9fafc56..fa626fa 100644
--- a/src/com/android/settings/fuelgauge/PowerUsageSummary.java
+++ b/src/com/android/settings/fuelgauge/PowerUsageSummary.java
@@ -683,7 +683,10 @@
         addWiFiUsage(uSecNow);
         addBluetoothUsage(uSecNow);
         addIdleUsage(uSecNow); // Not including cellular idle power
-        addRadioUsage(uSecNow);
+        // Don't compute radio usage if it's a wifi-only device
+        if (!com.android.settings.Utils.isWifiOnly()) {
+            addRadioUsage(uSecNow);
+        }
     }
 
     private BatterySipper addEntry(String label, DrainType drainType, long time, int iconId,
diff --git a/src/com/android/settings/wifi/AdvancedSettings.java b/src/com/android/settings/wifi/AdvancedSettings.java
index d5d55b1..faea9f2 100644
--- a/src/com/android/settings/wifi/AdvancedSettings.java
+++ b/src/com/android/settings/wifi/AdvancedSettings.java
@@ -18,6 +18,7 @@
 
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.Utils;
 
 import android.app.Activity;
 import android.content.Context;
@@ -103,16 +104,7 @@
                 : getActivity().getString(R.string.status_unavailable));
 
         Preference wifiIpAddressPref = findPreference(KEY_CURRENT_IP_ADDRESS);
-        String ipAddress = null;
-        if (wifiInfo != null) {
-            long addr = wifiInfo.getIpAddress();
-            if (addr != 0) {
-                // handle negative values whe first octet > 127
-                if (addr < 0) addr += 0x100000000L;
-                ipAddress = String.format("%d.%d.%d.%d",
-                        addr & 0xFF, (addr >> 8) & 0xFF, (addr >> 16) & 0xFF, (addr >> 24) & 0xFF);
-            }
-        }
+        String ipAddress = Utils.getWifiIpAddresses(getActivity());
         wifiIpAddressPref.setSummary(ipAddress == null ?
                 getActivity().getString(R.string.status_unavailable) : ipAddress);
     }