Installed it, played w/it, already nandroiding back to 8.7 w/t3hSteve's updated kernel.
There's no autobrightness setting in 2.1! Just not there, according to Pete. Huh? That was my "game-over" moment, aside from the other issues noted above.
2.1 just has very little allure in it's current form - nowhere near as smooth or reliable as 2.01 + 2.1 apps IMHO.
I think now I'm finally really going sit on my hands for a while and wait until the Droid 2.1 update comes out, and see what the devs do with that...