Me, I don't overclock. I don't see any point to it, really. I'm not using my N900 as a gaming machine; I handbrake all my videos before loading them onto the phone; and I rarely need to have more than a couple of apps running at the same time. I find that when browsing the net, I'm usually limited much more by network speeds than by the phone's CPU.

I can see why Android phones might need mucho CPU power to sustain the horribly bloated UIs being forced on them by the telcos. But beyond the "oh cool, I've OC'd my phone!" factor, I'm not sure why you'd need to push the N900 up into the red...