I have read a lot of times about MBP being hot, (VERY HOT!!!!, that's what some users normally post in forums). But is it really true? I mean, they say you cant even think of putting the MBP in your lap. Or are these people only exaggerating? I also read about an app that helps keeping the MBP cooler, but the guy didn't mentioned the name. Does anyone knows about it? And will these app make the MBP slower?