I've installed a few updates that were available, namely to Modest.

Ever since that upgrade, Modest stopped working altogether and the unfortunate event of even a soft reboot has left my N800 in a reboot loop.

It'll go through the reboot process, hang a few seconds, blink the blue led three times... and restart.

I've reflashed the N800 (which was a pain because I had pretty much everything tweaked to my taste), started installing a few things, including Modest.

Same thing happened: installed the updates, and Modest immediately stopped working and threw out an error message whenever I tried to start it. Launching it from terminal just gave a "Forbidden application" (or something to the likes of that), even from root.

As I rebooted to apply my regional settings... the N800 just hangs on a reboot loop.

So, two things: if you're planning on upgrading your packages, beware. I may not be alone here, especially given the fact that I reflashed and the exact same thing happened. Secondly, has this happened to anyone else, is there something one can do (other than go through the entire remove battery-remove SD cards-pray for 18 minutes-etc-etc-etc process).

I've pretty much exhausted the possibilities here, and I'm getting desperate enough with this, as the mere prospect of reinstalling everything again is a PITA, especially given the fact how slow things work when you add a few extra repos.