[android-developers] Google Map Intents, and a pin?

Hi,

I'm launching google maps via an intent. If I supply a lat,lon, no pin
will be displayed on the map. If I supply an address, a pin will
appear. Is there a way to explicitly tell google maps to add a pin,
and what text to put on it?

// lat, lon, no pin.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("geo:" + lat +"," + lon + "?z=" + 16));
startActivity(intent);

// Address, pin appears.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("geo:0,0?q=" + address + "&z=16"));
startActivity(intent);

The intents reference doc doesn't mention anything like that:
http://developer.android.com/guide/appendix/g-app-intents.html

Thanks

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