All the advice not to go screwing around without a good backup? Well, I SORT OF listened...
I rooted, got Titanium Backup, Root Explorer, Root Tools going. THEN I decided to see if I could remove a few random system apps using Root Tools, just to see what would happen. After all, it's taking a backup first, right?
No, I didn't keep a list of what I had removed. If I were bright enough to make lists like that, I'd be bright enough not to get myself into situations like this.
I rebooted, and started getting "The Application Test Messaging (process com.motorola.converations) has stopped working unexpectedly. Please try again." There are a few other applications that don't work, and the phone looks to have lost my Google account settings.
I figure I'll just use Root Explorer to move the apk's from where Root Tools had backed them up, back into /system/apps. Didn't help.
So - I figure a factory reset will take care of it, right? BAD MOVE. NOW, I can't even get past the initial configuration screen. I "Touch the Android to begin" and get "Sorry! The application My Accounts (process com.motorola.setup) has stopped unexpectedly. Please try again." Yea, well, try again yields the same results. I can't get adb to work from the (Windows) desktop, either, although all I have tried is just to connect the phone via USB in PC mode. It wouldn't shock me if the factory reset turned USB debug mode off, say.
Any one have any suggestions? Aside from my being a warning to others?