The android 2.2 froyo FRG33 build for the Nexus One has been leaked in the wild and is now available for download.
It has been found that the new android 2.2 FRG33 build is much faster than the previous FRF91 build. The android 2.2 FRG33 also comes with a new radio too.
If you so eager to get the android 2.2 FRG33 update for your Nexus One now itself, then you could move here and test the new froyo build on your device.