Perhaps it just needs to be a separate system completely that shares a display and storage. Separate battery. Keep the existing highly tuned photo system. Augme

Perhaps it just needs to be a separate system completely that shares a display and storage. Separate battery. Keep the existing highly tuned photo system. Augment by having an onboard computer. I think people are missing the point of DSLR to some extent. They aren't meant for this sort of thing. If you want onboard editing, don't use a DSLR. It is meant to be very good at one thing. It doesn't /want/ you to edit photos in place. It wants you to load them up onto a secondary computing system. I like my D90 the way it is. It can sit for weeks and not need a charge, and it is an instantly responsive camera, that happens to have a computer.