Have you tried booting into recovery mode and doing a factory reset? Would wipe your data, etc., but may solve the problem. I had my phone lock up yesterday hopelessly when I was restoring my backed up data and that was the only way to get out of the locked-up endless loop of error messages.
If you are interested (but I hope by now you've solved and moved on) -- power off, then slide out the keyboard. Hold the X key when you power up and keep holding the X key until you get a black screen with a yellow triangle / exclamation point. Then press volume up and the camera key (part way) at the same time. May have to fiddle with those buttons. You'll get another black screen with blue text -- a little menu. Scroll down (using the D Pad) and select factory reset. You'll get another screen with 10 no's and one yes -- scroll down to the yes. It will wipe everything, then select the option to reboot now. Painful way to solve the problem (b/c you'll have to restore your apps etc.), but hopefully you've elected to have Google back up your info.
Factory reset does not alter the OS, just your data. This factory reset saved me yesterday -- I was so glad I knew how to do this; otherwise, I'd be stuck and at the mercy of tech support.