freezing the 'carhome' apk definitely curtailed some of the reboots... it seems to self-start and not into 'active' memory too, not just in the cache, which could explain why the phone reboots. Basically, the app loads and the phone says "woah, wtf is this shit? SHUT DOWN!" and it reboots. Well, my logcats aren't as colorful as that, but you get the idea.