diff --git a/demo/java/com/android/microdroid/demo/MainActivity.java b/demo/java/com/android/microdroid/demo/MainActivity.java
index baf0242..b6c7714 100644
--- a/demo/java/com/android/microdroid/demo/MainActivity.java
+++ b/demo/java/com/android/microdroid/demo/MainActivity.java
@@ -18,7 +18,9 @@
 
 import android.app.Application;
 import android.os.Bundle;
+import android.os.ParcelFileDescriptor;
 import android.system.virtualmachine.VirtualMachine;
+import android.system.virtualmachine.VirtualMachineCallback;
 import android.system.virtualmachine.VirtualMachineConfig;
 import android.system.virtualmachine.VirtualMachineException;
 import android.system.virtualmachine.VirtualMachineManager;
@@ -36,6 +38,7 @@
 import androidx.lifecycle.ViewModelProvider;
 
 import java.io.BufferedReader;
+import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.concurrent.ExecutorService;
@@ -52,10 +55,12 @@
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         TextView consoleView = (TextView) findViewById(R.id.consoleOutput);
+        TextView payloadView = (TextView) findViewById(R.id.payloadOutput);
         Button runStopButton = (Button) findViewById(R.id.runStopButton);
-        ScrollView scrollView = (ScrollView) findViewById(R.id.scrollview);
+        ScrollView scrollView = (ScrollView) findViewById(R.id.scrollConsoleOutput);
 
-        // When the console model is updated, append the new line to the text view.
+        // When the console output or payload output is updated, append the new line to the
+        // corresponding text view.
         VirtualMachineModel model = new ViewModelProvider(this).get(VirtualMachineModel.class);
         model.getConsoleOutput()
                 .observeForever(
@@ -66,6 +71,14 @@
                                 scrollView.fullScroll(View.FOCUS_DOWN);
                             }
                         });
+        model.getPayloadOutput()
+                .observeForever(
+                        new Observer<String>() {
+                            @Override
+                            public void onChanged(String line) {
+                                payloadView.append(line + "\n");
+                            }
+                        });
 
         // When the VM status is updated, change the label of the button
         model.getStatus()
@@ -75,9 +88,10 @@
                             public void onChanged(VirtualMachine.Status status) {
                                 if (status == VirtualMachine.Status.RUNNING) {
                                     runStopButton.setText("Stop");
+                                    consoleView.setText("");
+                                    payloadView.setText("");
                                 } else {
                                     runStopButton.setText("Run");
-                                    consoleView.setText("");
                                 }
                             }
                         });
@@ -101,6 +115,7 @@
     public static class VirtualMachineModel extends AndroidViewModel {
         private VirtualMachine mVirtualMachine;
         private final MutableLiveData<String> mConsoleOutput = new MutableLiveData<>();
+        private final MutableLiveData<String> mPayloadOutput = new MutableLiveData<>();
         private final MutableLiveData<VirtualMachine.Status> mStatus = new MutableLiveData<>();
 
         public VirtualMachineModel(Application app) {
@@ -121,6 +136,31 @@
                 VirtualMachineManager vmm = VirtualMachineManager.getInstance(getApplication());
                 mVirtualMachine = vmm.getOrCreate("demo_vm", config);
                 mVirtualMachine.run();
+                mVirtualMachine.setCallback(
+                        new VirtualMachineCallback() {
+                            @Override
+                            public void onPayloadStarted(
+                                    VirtualMachine vm, ParcelFileDescriptor out) {
+                                try {
+                                    BufferedReader reader =
+                                            new BufferedReader(
+                                                    new InputStreamReader(
+                                                            new FileInputStream(
+                                                                    out.getFileDescriptor())));
+                                    String line;
+                                    while ((line = reader.readLine()) != null) {
+                                        mPayloadOutput.postValue(line);
+                                    }
+                                } catch (IOException e) {
+                                    // Consume
+                                }
+                            }
+
+                            @Override
+                            public void onDied(VirtualMachine vm) {
+                                mStatus.postValue(VirtualMachine.Status.STOPPED);
+                            }
+                        });
                 mStatus.postValue(mVirtualMachine.getStatus());
             } catch (VirtualMachineException e) {
                 throw new RuntimeException(e);
@@ -164,6 +204,11 @@
             return mConsoleOutput;
         }
 
+        /** Returns the payload output from the VM */
+        public LiveData<String> getPayloadOutput() {
+            return mPayloadOutput;
+        }
+
         /** Returns the status of the VM */
         public LiveData<VirtualMachine.Status> getStatus() {
             return mStatus;
diff --git a/demo/res/layout/activity_main.xml b/demo/res/layout/activity_main.xml
index cd30f35..e100027 100644
--- a/demo/res/layout/activity_main.xml
+++ b/demo/res/layout/activity_main.xml
@@ -33,10 +33,38 @@
                 android:text="Debug mode" />
         </LinearLayout>
 
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="10dp"
+            android:text="App output:" />
+
         <ScrollView
-            android:id="@+id/scrollview"
+            android:id="@+id/scrollPayloadOutput"
             android:layout_width="match_parent"
-            android:layout_height="match_parent">
+            android:layout_height="0dp"
+            android:layout_weight="1">
+
+            <TextView
+                android:id="@+id/payloadOutput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="#9089e0"
+                android:fontFamily="monospace"
+                android:textColor="#000000" />
+        </ScrollView>
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="10dp"
+            android:text="Console output:" />
+
+        <ScrollView
+            android:id="@+id/scrollConsoleOutput"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="2">
 
             <TextView
                 android:id="@+id/consoleOutput"