only google can make such an app. best we can do is emulate what another version of google maps would need (java or another phone OS) and get it working like that, but it's a real pain in the *** to get the gps working and decent performance. there's a palm os version we can emulate already, and of course the android operating system port is coming along nicely, but neither has access to the gps hardware so it's pretty much useless at this point. best thing we can do is convince google to make the app themselves, but they will only do it if there are a lot of these phones in use. well, maybe someone at google can do it as a hobby project, but i'm not holding my breath.