I have also had problems with the WM6.1. Flashed without the Bloat. I have seen many times the power on Flash problem that everyone else has. I have never had to reset the phone much but now I have to reset alot more. I also use Inav Iguidance for gps. It freezes on the map and does not move until refreshed by touching the screen. I fixed the problem by reading this thread on
XDA Developers.
AT&T Tilt, Windows Mobile 6.1 & iGuidance (oh MY!) - xda-developers