After I flashed the 2.2 ROM the other day, setcpu was not able to disable perflock, so it was not working. Just got a notification of an update from the market and it now seems to be working with 2.2.
Just letting people know. If this was an isolated issue and setcpu was still working for you, disregard.
Just letting people know. If this was an isolated issue and setcpu was still working for you, disregard.