Just doing all the software updates required on a new laptop. My first thoughts are that I haven't felt like this about a new laptop since playing with an IBM Thinkpad (remember those?), a long time ago when those were the very best laptops that money could buy. It manages to be no bigger (and quite a bit thinner) than my white MacBook while somehow at the same time feeling bigger. I'm really liking the keyboard and keyboard light. The only thing I don't like to far is the trackpad. I much prefer my big Magic Trackpad and will end up using this with the Air. Overall, very nicely done and a big upgrade from my older MacBook.