I'm having an extremely hard time deciding whether to sell my 2010 13'' Ultimate and buy a new one. I put it on CL and the first person that contacts me tells me he had my the 2010 13'' Ultimate and sold it for a new one, and now he wants the old one back due to the new one being too hot. He said temperature-wise it was like a MBP but I've never had one for reference. I often use mine on my lap and notice no discomfort at all, even when the CPU is at 65C, during flash browsing. It gets warm but it's not bad and definitely doesn't make me want to move it onto another surface. Heat is actually a big deciding factor for me now, since I regularly use my MBA on a couch. Anyone have any input?