but that goes for all idevices. this also completely vexes me too. why cant we have a simple, fuss-free method of file transfer, even if there's no proper file system in place? (ie, something like usb). and no the Pro is around files will be even bigger.
personally, i'm going to make most of icloud and dropbox.
I think they leave this functionality off because they're afraid to cannibalize their sales of full-blown computers. but that tactic is going to bite them as they will be cannibalizing sales of iPads in favor of Surface tablets.