Pentax K-30 A (with articulating screen)

Absolutely -- I've been thinking for a while that we need to separate the viewfinder from the lens-and-sensor.  Several years ago I visualized something like a GXR module connected to the camera body by a cable -- you could put the module up on a pole, or stick it underwater, without the controls and display having to be inaccessible or waterproof.

If you separate the screen, you also want at least some controls with it...

A first step has been taken on this: certain cameras equipped with wifi can be viewfindered and controlled via a smartphone app.  Of course, this does increase the viewfinder lag.

--
in the mail: Q with 02 zoom and cheap K adapter
keepers: K10D, Sig 17-70, DA 55-300, FA 50/1.4 "Billy Bass"
discards: DA 50-200 "zipper", F 100-300, Sigma 135-400 "piglet", M 400/5.6 "the Great Truncheon"