The GPS is more then perfect on this. It's finally usable without a keyboard. The only thing that I would be interested in seeing changed right now would be the mp3 player. Maybe something that would list the songs that are on the playlist.
I know some people have been switching back and forth between autotouch and frodoplayer. Frodo for the mp3's and autotouch for the perfect gps. It would be great to just use autotouch for both.