Macbook Air Internal EVDO Broadband Card Mod
Sastira writes "Jordan Bunnell has successfully modded his Macbook Air to use an internal EVDO Broadband card. In order to make everything fit, he had to sacrifice the WiFi and bluetooth cards, but considering the portable nature of the laptop, it is a small price to pay for being truly wireless."
(You'll need to scroll down past the sketchy-looking top section of that page.) Sastira also links to this InsanelyMac forum thread on the mod.
my dongle is about 8.5 inches long and weighs 2 pounds. I carry my johnson around all of the time with it engorged and ready for use. I sure would give up WiFi and Bluetooth to put it inside a nice tight pousoir.