Integrate Mapview into a tab/Integrate overlays/markers.

Question

I need some help integrating a mapview into a tab and integrate overlays/POI. Current code: TravelBuddy.java

package com.travelbuddy.android.jappapps;

import android.R;
import android.app.TabActivity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.widget.FrameLayout;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;

public class TravelBuddy extends TabActivity  {
TabHost mTabHost;
FrameLayout mFrameLayout;

/** Called when the activity is first created.*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mTabHost = getTabHost();
TabSpec tabSpec = mTabHost.newTabSpec("tab_test1");
tabSpec.setIndicator("Map");
Context ctx = this.getApplicationContext();
Intent i = new Intent(ctx, MapTabView.class);
tabSpec.setContent(i);
mTabHost.addTab(tabSpec);
   mTabHost.     addTab(mTabHost.newTabSpec("tab_test2").setIndicator("Details").setContent(R.id.text2));
  mTabHost.setCurrentTab(0);
 }
}

MapTabView.java:

package com.travelbuddy.android.jappapps;

import android.R;
import android.os.Bundle;
import com.google.android.maps.MapActivity;

public class MapTabView extends MapActivity {
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
}
@Override
protected boolean isRouteDisplayed() {
return false;
  }
}

Main.xml:

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
 android:id="@android:id/tabhost"
 android:layout_width="fill_parent" android:layout_height="fill_parent">
 <LinearLayout android:orientation="vertical"
 android:layout_width="fill_parent" android:layout_height="fill_parent">
  <TabWidget android:id="@android:id/tabs"
     android:layout_width="fill_parent" android:layout_height="wrap_content"/>
  <FrameLayout android:id="@android:id/tabcontent"
     android:layout_width="fill_parent" android:layout_height="fill_parent">
      <RelativeLayout android:id="@+id/emptylayout1" android:orientation="vertical"
         android:layout_width="fill_parent" android:layout_height="fill_parent"/>
      <TextView android:id="@+id/textview2"
         android:layout_width="fill_parent"
           android:layout_height="fill_parent"
         android:text="Details Details Details Details"/>
    </FrameLayout>
    </LinearLayout>
   </TabHost>

MapTabView.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/maptablayout" android:orientation="vertical"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<com.google.android.maps.MapView android:id="@+id/mapview"
   android:layout_width="fill_parent" android:layout_height="fill_parent"
   android:clickable="true"
    android:apiKey="0pFtdSwta8EMTfArj32ycOw2kZg0LSEqa4fUGFA"/>
</RelativeLayout>

Manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.travelbuddy.android.jappapps" android:versionCode="1" android:versionName="1.0">
 <application android:icon="@drawable/icon" android:label="@string/app_name">
 <uses-library android:name="com.google.android.maps"/>
 <activity android:name=".TravelBuddy" android:label="@string/app_name">
    <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
        <category android:name="android.intent.category.LAUNCHER"/>
    </intent-filter>
  </activity>
  <activity android:name="MapTabView" android:label="@string/mapview_name">
    <intent-filter>
       <category android:name="android.intent.category.EMBED"></category>
       <action android:name="android.intent.action.MAIN"></action>
    </intent-filter>
  </activity>
 </application>
 <uses-sdk android:minSdkVersion="3"/>
 <uses-permission android:name="android.permission.INTERNET"></uses-permission>
 <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS"></uses-permission>
 </manifest>

Anyone who can help?