Came home last night to find my 12" powerbook asleep (how I left it), but with the fan running pretty hard and the computer reasonably hot. I opened up the lid, but the screen didn't fire up and the sleep button wasn't lit (I didn't notice whether the sleep button was "breathing" when I walked in or not). Pressed the power button briefly, but still nothing. Finally, I had to hold down the power button and do a hard restart in order to get the computer back up. Everything looked fine, but I'm still kind of concerned. It was just left sleeping on my desk. I've been considering a powered cooling pad for it, but I'm assuming that won't run while its asleep. Maybe an iCurve would be better (although it forces me to get an external keyboard and mouse, which I wasn't rushing to do yet)?