It's been two days since it happens the first time to me.

I can confirm that it could have something to do with low battery - my N800 has shut down due to low bat.

Perhaps another hint: did you guys have bash2 installed or updated soon? I found this:
http://www.internettablettalk.com/fo...ht=update+boot
thread and it seems it is about the same problem. The only connection is that i have bash2 at least updated bevor the reboot loop.

Am I the only one who can not access the above linked wiki?

By, heizer