Not only that, more recent models had a mini-A usb socket so you could plug in digital cameras, keyboards etc without needing funky adaptors!
if the tablet isn't going to gain a CF slot, which is unlikely, at the very least fit a useful USB socket with sufficient power to drive a 3g usb modem, PLEASE.
Otherwise, as people have asked innumerably, a docking connector would be ideal... model it on single lane PCIe or something, add usb pass through and video pass through!