Up the build quality, but keep the hyper rugged design philosophy, round things off so it slides into a backpack easily, make sure there's plenty of ports, and

Up the build quality, but keep the hyper rugged design philosophy, round things off so it slides into a backpack easily, make sure there's plenty of ports, and I'd consider buying tablet PC with about this form factor. (Yes, yes, I could just buy a tablet PC and put it in a paranoid-level ruggedized case.)