Anyone else having some issues with USB? Mine is intermittently working. A reboot normally corrects it, but not always. I added 10.5.2 and a Belkin 4-port hub at virtually the same time, so I'm not sure how much it played into it. Knowing that there's an increase in power and the somewhat flimsy and mobile housing for the USB port, I'm a bit worried something's loose in there.
(All that said, I love my Air.)
(All that said, I love my Air.)