I messed around with them at the Boston store and I'm pretty
impressed. The whole trackpad being the mouse button sort of threw me
off at first but I can tell its one of those things you can get used
to real fast. Mouse gestures are a nice gimmick, not really useful for
photos but the gestures for exposé and spaces I really liked and
complement the UI very well. Other than that they look fantastic as
you can already tell, the glass screen enhances colors very nicely,
the aluminum seems very sturdy, and the design is much sleeker having
been made from a single piece of metal. Thats all I could really tell
from first glance, I only stopped in the store to escape the cold for
a few minutes but from what I can tell apple did good on these.