I, like everyone else, noticed a big difference in the stability if 2.1. I no longer had keyboard lag, contact opened up instantly, transition between pages are a lot smoother, and the response is instant to the touch. How is it for a jailbroken/unlocked 2.1? Did anyone else noticed any thing less than the normal version? If you have winterboard and theme installed, do you notice any slowdown? Thank you for the responses.