I still had the GPS issue after a wipe and the first thing I did after flash was to use maps with GPS, it shut down shortly after. Since yesterday I have been testing a kernel where TomG hardcoded the battery temperature reading to 10C, because its known that temperature reading goes nuts while the phone sleeps. Havent been able to reproduce the bug since then so hopefully the problem is identified. :D
Any app using the GPS makes it shut down 10-20 minutes after closing down the app. As long as I dont have the USB cable plugged in... So that makes it so much harder to logcat :D When I then pull the cable out, it shuts down within said time.