I'm a NEX user, so take this with a grain of salt, but I'm wondering how Zeiss/Cosina/Tamron/Sigma's recent announcement of NEX support will coexist with m4/3 designs? Do these companies design two, separate lines of small lenses, or do they design one and change mounts (and potentially electronics?)
Obviously, the latter would leave m4/3 the short end of the stick, since m4/3 lenses would be larger than they need to be, and the focal lengths may be odd. However, it could be a possibility, since it would be a much cheaper option for these companies, no?