Good point. It suggests that a keyboard that was a mouse might capture both qualities. I can't imagine how you might accomplish that (attach your keyboard to your wrists somehow?) but it sounds like an interesting (if cutting edge) experiment.
For the record I own one of the weird things Microsoft built the 'Strategic Commander' [1] which, if one could have two of them, and the protocol was documented, my make for an interesting test platform.
The Strategic Commander looks like an awesome beast. And I like your idea of keyboards that were mice. If there were some way to move beyond the obvious ergonomic issues, that is. It would definitely be for the power user. Or power gamer. I mean, these guys already learn some pretty insane (to me) mice[1][2] to get an edge.
For the record I own one of the weird things Microsoft built the 'Strategic Commander' [1] which, if one could have two of them, and the protocol was documented, my make for an interesting test platform.
[1] http://guru3d.com/review/microsoft/commander/