It just seems the m43 lenses are limited. I have the panny 12-35 that is a good lense since it has ois, and it's a little wider then most. i'd really like to see the new panny 42.5 lens. That may be the last m43 I buy. Also, the zeiss contax are on the cheaper end of the prime price range. I was ready to get an slr magic but decided to go zeiss after I read the guide on reduser. Also, they have some character to them. I can't see it yet, still learning. But some of the new lenses are super sharp and no soul. Also, the speedbooster is a game changer.
I have a gx1 and have debated the gm1 and gx7. I'm renting a gx7 this week to see if the focus peeking and ibis is worth it. I am using more manual focus lenses so I want better focus assist and peeking. For now it's for stills since I have a pocket camera for video. I'm also using the speedboost nikon mount more and more on the gx1 and pocket camera. Opens up the lens options greatly.