I have both the Nexus One and the N900.

Nexus is running Android 2.2 and Flash 10.1 beta.

N900 is running RC 1.2 clocked at 1Ghz.

I've noticed that many flash games are harder to play on the Nexus without the software mouse. The speed of flash, however, is much faster on the N1, which renders many of those same games unplayable on the N900.

I'm just reporting my usage for some games, not in depth and certainly not an apples to apples review.