Yes but major features like Siri and turn by turn wont work on the 3GS (or 4), which I think says a lot as well. Check smackfu's comment for device feature sup

Yes but major features like Siri and turn by turn wont work on the 3GS (or 4), which I think says a lot as well. Check smackfu's comment for device feature support breakdowns: http://news.ycombinator.com/item?id=4096633 http://news.ycombinator.com/item?id=4096633