diff --git a/core/types.h b/core/types.h
index d87e87426..e02b19917 100644
--- a/core/types.h
+++ b/core/types.h
@@ -703,6 +703,7 @@ static inline void do_nada(...) { }
 #define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
 #define LOGW(...) __android_log_print(ANDROID_LOG_WARN,LOG_TAG,__VA_ARGS__)
 #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
+#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
 	#ifdef STRIP_TEXT
 		#define puts do_nada
 		#define printf do_nada
diff --git a/docs/microphone support notes.txt b/docs/microphone support notes.txt
index cc22ba69c..9328162b5 100644
--- a/docs/microphone support notes.txt	
+++ b/docs/microphone support notes.txt	
@@ -26,12 +26,11 @@ maximum size of a Maple Bus packet is 256 words (1024 bytes)
 
 ================
 Games that can use mic:
--Seaman
+-Seaman [tested, working!]
 -Alien Front Online
 -Planet Ring
--Mr Driller
--Otoire
+-Mr Driller [tested, working!] (lol @ telling mr driller to dig)
+-Otoire [tested, working!]
 -Propeller Arena
 -Visual Park
--Kiteretsu Boys Gangagan
-
+-Kiteretsu Boys Gangagan
\ No newline at end of file
diff --git a/shell/android/jni/src/Android.cpp b/shell/android/jni/src/Android.cpp
index 93b6748af..2f05061d9 100644
--- a/shell/android/jni/src/Android.cpp
+++ b/shell/android/jni/src/Android.cpp
@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdarg.h>
 #include <android/log.h>  
+#include <unistd.h>
 
 #include <EGL/egl.h>
 #include <GLES2/gl2.h>
@@ -38,6 +39,7 @@ extern "C"
   JNIEXPORT void JNICALL Java_com_reicast_emulator_JNIdc_initControllers(JNIEnv *env, jobject obj, jbooleanArray controllers)  __attribute__((visibility("default")));
   
   JNIEXPORT void JNICALL Java_com_reicast_emulator_JNIdc_setupMic(JNIEnv *env,jobject obj,jobject sip)  __attribute__((visibility("default")));
+  JNIEXPORT void JNICALL Java_com_reicast_emulator_JNIdc_vmuSwap(JNIEnv *env,jobject obj)  __attribute__((visibility("default")));
 };
 
 
@@ -224,6 +226,23 @@ JNIEXPORT void JNICALL Java_com_reicast_emulator_JNIdc_stop(JNIEnv *env,jobject
 	dc_term();
 }
 
+JNIEXPORT void JNICALL Java_com_reicast_emulator_JNIdc_vmuSwap(JNIEnv *env,jobject obj)
+{
+	LOGD("vmuSwap go!");
+
+	maple_device* olda = MapleDevices[0][0];
+	maple_device* oldb = MapleDevices[0][1];
+	MapleDevices[0][0] = NULL;
+	MapleDevices[0][1] = NULL;
+	usleep(50000);//50 ms, wait for host to detect disconnect
+
+	MapleDevices[0][0] = oldb;
+	MapleDevices[0][1] = olda;
+
+	LOGD("vmuSwap done");
+
+}
+
 JNIEXPORT jint JNICALL Java_com_reicast_emulator_JNIdc_send(JNIEnv *env,jobject obj,jint cmd, jint param)
 {
 	if (cmd==0)
diff --git a/shell/android/src/com/reicast/emulator/GL2JNIActivity.java b/shell/android/src/com/reicast/emulator/GL2JNIActivity.java
index f83712df3..855ed7fa3 100644
--- a/shell/android/src/com/reicast/emulator/GL2JNIActivity.java
+++ b/shell/android/src/com/reicast/emulator/GL2JNIActivity.java
@@ -90,31 +90,34 @@ public class GL2JNIActivity extends Activity {
 				GL2JNIActivity.this.finish();
 			}
 		}), params);
+		
+		//TODO comment what these do
+		//TODO update these icons
 
 		hlay.addView(addbut(R.drawable.config, new OnClickListener() {
 			public void onClick(View v) {
-				JNIdc.send(0, 0);
+				JNIdc.send(0, 0); //Killing texture cache
 				popUp.dismiss();
 			}
 		}), params);
 
 		hlay.addView(addbut(R.drawable.profiler, new OnClickListener() {
 			public void onClick(View v) {
-				JNIdc.send(1, 3000);
+				JNIdc.send(1, 3000); //sample_Start(param);
 				popUp.dismiss();
 			}
 		}), params);
 
 		hlay.addView(addbut(R.drawable.profiler, new OnClickListener() {
 			public void onClick(View v) {
-				JNIdc.send(1, 0);
+				JNIdc.send(1, 0); //sample_Start(param);
 				popUp.dismiss();
 			}
 		}), params);
 
 		hlay.addView(addbut(R.drawable.disk_unknown, new OnClickListener() {
 			public void onClick(View v) {
-				JNIdc.send(0, 1);
+				JNIdc.send(0, 1); //settings.pvr.ta_skip
 				popUp.dismiss();
 			}
 		}), params);
@@ -122,6 +125,13 @@ public class GL2JNIActivity extends Activity {
 		hlay.addView(addbut(R.drawable.profiler, new OnClickListener() {
 			public void onClick(View v) {
 				JNIdc.send(0, 2);
+				popUp.dismiss(); //print_stats=true;
+			}
+		}), params);
+		
+		hlay.addView(addbut(R.drawable.input, new OnClickListener() {
+			public void onClick(View v) {
+				JNIdc.vmuSwap();
 				popUp.dismiss();
 			}
 		}), params);
diff --git a/shell/android/src/com/reicast/emulator/JNIdc.java b/shell/android/src/com/reicast/emulator/JNIdc.java
index b1dc12fbb..2a68aff44 100644
--- a/shell/android/src/com/reicast/emulator/JNIdc.java
+++ b/shell/android/src/com/reicast/emulator/JNIdc.java
@@ -24,6 +24,7 @@ public class JNIdc
   public static native void initControllers(boolean[] controllers);
   
   public static native void setupMic(Object sip);
+  public static native void vmuSwap();
 
   public static void show_osd() {
     JNIdc.vjoy(13, 1,0,0,0);