Well, even if you don't personally want overclocking, you can still flash a kernel that is capable of it. Just don't enable that capability.

I am personally looking forward to the power-user kernel with joikuspot capability, MMC fixes, and now USB host mode patches.

I'm still waiting for the other shoe to drop, however. Why did the N900 team decide to lock this capability away from us? What do we not know yet?