I didn't see a thread for Google Navigation. I tested it on the Eris and it's fantastic. I stopped by the VZW store and picked up the Body Glove case for the Eris which works with the Moto Droid Mount/Case combo. The downside is that the Moto Droid mount/case combo is $30 and the Body Glove for the Eris is also $30. If you have a Moto Droid you get both for $30. With the 25% discount I get through my company, it came to $45+tax, which isn't bad at all. It works like a charm for mounting the Eris like any GPS and it destroys my Tom Tom One 3rd Generation, which I got back in 2007. I haven't tried to voice search for it yet.