The German company Novoflex will offer an adapter that allows Leica M lenses to be attached to Micro Four Thirds cameras. I am not sure if this is the same product reported by Leica Rumors few days ago.
Novoflex does not provide much info on their website – here is the direct product link:
New adapter for cameras with bayonet FourThirds
Lenses are available for the following:
M42 (FT / CO), Contax / Yashica (FT / CONT), Leica R (FT / LER)
Nikon (FT / LCI), Olympus OM (FT / OM) and Pentax (FT / PENT).
The price of the adapter will be 149 (around US $190) and it should be available later this month.