I had a couple smartasses comment on my post about the craptastic MacBook Air, saying that I could use an USB EV-DO card. Except they suck. Well, here’s the answer to that:
Adding insult to injury: USB 3G modems won’t fit in the MacBook Air.
What’s up.

maybe this would help…?
http://www.startech.com/Product/ItemDetail.aspx?c=US&productid=USBEXTAA6IN
no disrespect
-matt