Was it just me, or anyone else had the unit gone to a full factory reset this morning? I didn't do anything with the unit for a couple of days, and this morning, trying to power it on, I got "system error - will do a factory reset" message. After that it went through a couple of reboots, system update, and from all the looks ended up in the state identical to the one when I just got it (kernel Oct. 27) - so apparently it can do a true factory reset under certain circumstances, if the things get pretty screwy.
I am thinking - should I make a full SD card image now, when it's in its most pristine state? I have now adb over USB working, so presumably I don't even have to root the unit or install any apps.