BTW, if you had a bad flash, you break it trying to tweak it, or for any other reason feel the desire to re-do the update, try this. Use Matt's utility 1.82 to fastboot back to .211 (this will NOT boot or take you back to working ICS) and reboot into the stock recovery when finished (of course the process will show a number of failures, but you'll be able to get to recovery). Wipe data/cache, and apply the update again from your external sd. It should run the update again with no problems, as the phone will report as being on .211 despite the fact it won't boot. When you're finished, wipe your data again and reboot, and you should be good to go.
I can confirm that this works. My camcorder and video playback was not working for whatever reason. After following this idea I was able to get it going and the phone acts like I would expect it to. The only problem - my Vodoo backup was lost in the process and I think I am stuck without root. However, this does work to basically get back to stock JB if you mess something up. Thanks!