Haven't seen this posted yet, and it could come in handy so we don't have to go back to 2.0.1 any more. You know the .sbf file we all use to get back to stock via 2.0.1? Well there is a .sbf file for 2.2 FRG01B now as well. I flashed it myself to test, and it seemed to work just fine.
The original post, over at alldroid.org - FRG01B.SBF for Droid courtesy of RootzWiki - Droid Releases - AllDroid Public Board - FRG01B.SBF for Droid courtesy of RootzWiki - Droid Releases - AllDroid Public Board - AllDroid.org > Home
The download link - http://www.wikifilez.com/Root%20File..._UPDATE_01.sbf
Of course, this all assumes that we're using the latest OTA file, but that's looking more and more likely.