For the hardware geeks out there, here's the reference design, which seems to indicate some future models "could" supportremovable memory for loading in and getting data off of PMCs.
It might be missing the PureView camera, but it has a perfectly reasonable Carl Zeiss lensed standard camera, removable battery, support for MicroSD cards for extra storage, and runs everything the Lumia 920 does.
Of course, there is still quite a bit of work to be done to make this work: iPhones do not have removable batteries, nor do they support multi-tasking, meaning that some sort of ruggedized, battery-powered external case would be necessary to get this battle-ready -- as well some jailbreaking.