Froyo (Android 2.2) Update: You Won't Notice Much, At First

Chances are you won't really notice that much when you reboot with Froyo for the first time. This isn't a major overhaul to the look and feel of Android.

What you can't see is the "Just-in-Time compiler," which can double the processing power, and the ability to run Adobe Flash 10.1.

Q&A: All about the Froyo updates