With as small as Apple is pushing their newest MacBooks, I doubt they have the real estate on the logic board for the chip, not to mention the associated antenn

With as small as Apple is pushing their newest MacBooks, I doubt they have the real estate on the logic board for the chip, not to mention the associated antenna in the case. Anyone that needs cellular networking (and can't find wifi) probably can tether their iDevice or has a USB stick (I assume there are Mac compatible ones). It would be nice though to have an API that helps differentiate network classes to stop thing like Dropbox from syncing over cellular.