not sure if anybody else saw this but i came across it on engadget. im a little skeptical to try it but if anybody tries it and updates to 2.1 let me know how it went.
Stable Android 2.1 hacked onto Droid, speeds through those extra home screens -- Engadget
Stable Android 2.1 hacked onto Droid, speeds through those extra home screens -- Engadget