I politely disagree with your comment that m4/3 is not good enough for serious photography. I just completed a shoot for a major publication – 2 features, one being a fashion spread and while I had my Canon 5D and a Contax 645 rig, half of the pictures that were selected for the features were shot with a GF1 and the Olympus 17mm 2.8 lens (yes, the one people like to trash).

If your definition of “serious” means huge wall sized prints, than perhaps you are right, but professionals like myself are finding the platform to present viable photographic tools.