Well, Leica M refers to the system, not Leica. I don't see the point of testing native Leica lenses other than on the M9 for the reasons you mentioned.
One of the upcoming tests will cover the Voigtlander Heliar 75mm f/1.8 for instance. It is an affordable lens - and a very good one on the NEX7. Voigtlander tests have been pretty popular actually.
However, testing discontinued MF SLR lenses will not happen on NEX. Sorry. We just can't stretch our resources so far.
One of the upcoming tests will cover the Voigtlander Heliar 75mm f/1.8 for instance. It is an affordable lens - and a very good one on the NEX7. Voigtlander tests have been pretty popular actually.
However, testing discontinued MF SLR lenses will not happen on NEX. Sorry. We just can't stretch our resources so far.