I'm curious how hot they run maybe compared to the first unibody notebooks which ran pretty hot. I don't care to use SMC fan control to calm Things down and I'm In the market for a machine only if they release a new one in the next 30 Days (limitation of the Barclay card) I don't honk I'll grab an end of cycle 13" unless there's w great price but I'd like the option - so feedback on heat would be helpful. I push processors with image editing and this time I'm limiting myself to the smaller pro with retina I've already got a furnace in the surface pro 3 right now and given how hot it is here most of the year im not interested in raising ambient temp by 10 degrees when image or video editing. Sonic it's bad (not cooler than previous models)may just get an iMac. Thanks for the feedback.