Until HF4 is released, do NOT clock exactly to 650 Mhz. Due to some small error in the algorithm, setting CPU Speed to 650 sets it to -1 MHz (whatever the OMAP does then... but it's slow).
So use 651 or 649 or something completely different - but not 650
Yeek. I assume that the slider doesn't change the actual speed until you click on OK, right? Otherwise this is bad mojo...
Are there any other speeds we should avoid because of a similar issue?