No, not much.
Only that I've read Michael Reichmans findings about 35mm and MF lenses and Sensors over some 20MPixels interesting. Seems that the current resolution you can get from a Canon 1D MkII or Phase one P45 is more than what the lenses deliver. The shots with which he compared the Phase one back a Hassy and a Linhof with Rodenstock lenses seem to prove what he said.
And to crop factor or not. If I can get a digital Rangefinder with framelines for leneses with the FoV of 28, 35 and 50 I'm fine. That's the major shortcoming I see in the R-D1, the 28 is not wide enough for me, a viewfinder with framelines for a lens around 22mm would solve the problem for me.