Hi I have a Rev B, 1.86 128GB SS. It is good except a little weak on battery and heat is still there for anything remotely intensive so my question is: How do you rate battery life of new 13 MBA? My Rev B gets roughly 2 hours watching a HD show from CBS, or 4.5 hours (best case) doing non flash surfing or anything non intensive work, watching photos, writing in word etc. Heat is there if I watch videos, like the example above, routinely around 70-74 watching a video show over the internet. RPM for fan 2500-3000 at that temp. How is the heat of the new one? (I tried one in the Apple store and it bare felt warm underneath while watching an episode on cbs.com). My other finding is that the new one felt a little more "solid", cant point to anything specific but a general feel when closing and opening it. Btw, I still run Leopard since I felt that I lost battery time under snow leopard and that it was also slightly warmer under Snow Leopard. Any other difference you have noticed in the new MBA? Many thanks!