Well, when all is said and done:

Since Droid does a great job with emulators but can't play Quake 1 very well due to the overhead, my guess is the N900 will kick Droid's a55 for emulators.

Quake 1 is weak to a stuttery mess on Droid. Quake 3 seems to play smooth with sound on the n900.

Strange about Droid, since my Dell Axim played Quake 1 pretty good with sound.