Well, that didn't go so good. Here's my report. I ran the update and it locked my N800 so hard I had to take the battery out of it to get it to restart. Then it went into a reboot loop. So, I had to flash the device. Very nice. I'm not going to read 47 pages of this thread, but I'm guessing people aren't sitting around holding hands and singing cumbaya on this one.

It's up and running again now though, so I guess all's well that end's well. Sorta.