looking at the new M, is Leica moving towards into a more modular approach? the premise of adapting those R lenses on an M body and have some of the ergonomics of recent SLRs or m4/3s is really enticing. of course there are more advantages in using a dedicated SLR system but this is really exciting to say the least. need something for unobtrusive street shooting? use M lenses. need the reach of a telephoto or magnification of macro? use the EVF and adapt an R lens. And it's full frame too!
It is really an exciting time to be in this hobby (or addiction, whatever floats your boat).