Default Update Hosed Me...

I was notified of the 10.1 update, and told it to go ahead. I noticed as I was going to sleep that there was a crawler progress bar moving (very slowly) at about 35% when I nodded off.

Woke up this am, screen on but nothing on it. All I can get it to do it reboot, display the Galaxy logo, then nothing. The screen is on, but nothing is on it. That's it. Sunk.

If it power it off (takes forever) and plug it in, I see the battery icon, but it is not animated. It then goes to the Galaxy logo, and to the BSOD.

I am NOT rooted or anything, so this is extra vexing. Any ideas?