If I'm going to get a Leica mount rangefinder it's going to be an actual Leica. This would have just been yet another body for my Russian lenses. But not at $600. I'm pondering saving for an M body now...seems to be the best way to go. Most likely an M3.
I'm a Leicaphile myself. I know the Voigtlander equipment is good, but when I can get an M3 for the same amount used as a new R2/3A, I don't really see why I shouldn't get the Leica.