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Yes, this is very interesting, Jeff. What does your research tell you about that new Sony sensor?
My Oly is the OM-D EM-1, by the way.
DxOMark ranked the Sony a7R sensor on par with the D800 models - not bad company to be keeping. While it's still new to the US market, it is producing some amazing images. Search through FM's "Alternative Gear & Lenses" forum and you'll find numerous threads about the a7 and a7R cameras. Lots of great photos.
The build quality appeared top notch to me and "went well to hand". While I'm not sure it is the right platform to strap a piece of 600mm L glass to, it sure would be a tremendous asset in many other situations. Based upon much of what I've read on FM and Luminous Landscape, folks that have been hanging onto their high-end Leica glass for many years have hit the jackpot with the a7R. While it isn't a perfect match, it is apparently darn close.
As a travel camera mated with a Leica-sized lens, you'd be in hog heaven. Folks are also producing great images using old Olympus OM Zuiko, Minolta MC Rokkor, Voigtlander Nokton and other rangefinder type lenses (http://www.fredmiranda.com/forum/topic/1254258/28). Unlike the nearly $8,000 you'll pay for a Leica 24mm f/1.4 Summilux-M Aspherical Lens, you can apparently pick up some great old lenses for relatively cheap prices.