Root Android 2.2 on Nexus One
It’s been just a few minutes since the Android 2.2 manual update file has been released and guess what, we already have the method to root Android 2.2 on Nexus One!
This time, the quick root has been out by Cynogen who has managed to compile a quick root access method for Android 2.2 (Froyo) which adds Busybox and Superuser.
Download Froyo Rooter (Android 2.2) Nexus One
You can download it from the link here: Download Froyo Rooter