Looks like Unrevoked3 got the 2.2 Root

[Knightslugger]

NO, all it does is give you root access. If you already have Froyo you have the 7.28 radio but there is a 9.01 radio that you can update too. However from my experience it kills your battery.

I've read that too, on occasion though. I wonder if running the Undervolt Kernel would help...

 

[coco savage]

i might consider rooting soon......