What good is 3G support when Apple will once again force you to use MicroSIMs instead of the normal ones. Then that'll put people to go for another AT&T data plan. The only people that won't be inconvenient with this are those that are already using these Micro SIMs in their iPads. Just remove them from your iPads and slot them in the MBA. But do you really see iPad owners using their micro SIMs in their MBA just so they can use 3G speeds to do whatever it is that their iPads can already do? I know its cool to have this rather than nothing at all but if Apple will use precious space just for a micro SIM, I'd rather they use the space for something else.