Originally posted by juu I'm sure Ricoh will release a (manual focus-only) K-module for GXR. That's like 99% certain even without asking.
Not necessary. The M-mount, with adapters, can use Nikon, Pentax, Canon (FD and EOS), Sony-Minolta, Exakta, Petri, Konica, Olympus, Contax, Fuji-X, Leica (bayonet and screw), just about everything in the 135 world. And the short-register lenses that won't work on M-mount, WILL work on Q-mount. Ricoh-Pentax MIGHT release a K-mount, or maybe they'll just contract for a zillion adapters.