Got my 6/20 2.3/16/256 Macbook Pro Retina on Wednesday, one day earlier than expected. On the plus side, the screen's amazing, and the performance very good. The battery is only so so -- I'm getting 4.5 hours with multiple tabs open and web surfing. But my biggest negative so far is what seems like a lot of heat emanating from the keys themselves. Under normal use, the wrist pads aren't that warm, although the bottom is. The keys themselves, though, seem very warm. Not too hot to touch, but definitely noticeable as I type. I'm coming off an old white 2007 Macbook, so this is the first unibody Mac I've worked with. I know they run hot. But the CPU and GPU temps are only in the low 40s as I type this. Is it normal that the keys get kind of toasty?