Originally Posted by
cordelli
Because the space of the card slot is needed for other things like a bigger battery. Apple wanted to do without a SIM slot on the new iphone for space savings, but the providers talked them out of it (going to a virtual sim instead)
I should have said microSD. You're correct that space is at a premium, but a microSD card is 11x15x1 mm. It wouldn't be taking up much space.