Android - Sending GPS Location to Emulator

Assuming you've got a mapview set up and running:

MapView mapView = (MapView) findViewById(R.id.mapview);
final MyLocationOverlay myLocation = new MyLocationOverlay(this, mapView);

mapView.getOverlays().add(myLocation);
myLocation.enableMyLocation();

myLocation.runOnFirstFix(new Runnable() {
    public void run() {
        GeoPoint pt = myLocation.getMyLocation();
    }
});

You'll need the following permission in your manifest:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

And to send mock coordinates to the emulator from Eclipse, Go to the "Window" menu, select "Show View" > "Other" > "Emulator control", and you can send coordinates from the emulator control pane that appears.