NO external drive,
NO FireWire,
NO Ethernet,
NO PC Card.
That’s the price of AIR. (That and $1799…).
That’s a lot of NOs comapred to what we’re used to, compared to what we expect (plenty of yes and more).
BUT (that’s one big but !) as any Apple product: wait to hold one in your hands before you judge,
AND try to let go old dying concept once in a while. You might even enjoy it.

To sum up: NO, NO, NO, NO, BUT, AND !
(Note: still, it lacks a 3G modem to fully embrace mobility. It will come soon).