Ever since getting my GRDiii, I am in love with Ricoh's controls, and have thought (briefly) about the GXR system. But I love my MFT primes, and don't see much in GXR that I actually want. I also have toyed with getting a DP camera, but am pretty certain I would go insane with the controls and speed. Just a random thought popped into my head: would a DP Lensor module for the GXR system be great? I think I'd get that in a heartbeat. Ricoh controls, Sigma Foveon.