I've just had a play with the app - it looks and runs very nicely. My only negative comments would be that I couldn't work out how to close the app (i.e. get it to not be full screen so I could hit the X in the corner) so had to open the camera to switch away. Did I miss something? The other thing (which is pretty important imho, and the Maps app doesn't handle it either) is that the blue current location circle/blob should really change size to indicate the accuracy of the fix (this info is available from the liblocation callback iirc). Anyway, keep up the good work