My question is simple, Will we ever see built in cellular networking in a Mac notebook? It would be nice to have, especially the 11" Air. Not everywhere I go has Wifi, and having a big dongle (thicker than the Air!?) hanging off it is a real downer for such a nice product. Would any of you pay, say.. $79 / £49 for one built in and a sim-card slot next to the SD slot... ?