Earlier this year, we heard reports that the innovative Metabones Speed Booster would be coming to Micro Four Thirds in April. Unfortunately, that date has now slipped, and Olympus and Panasonic ILC shooters will have to wait a bit longer before being able to try the light boosting powers of the adapter.
We apologize but the m4/3 schedule is slipping. Manual focus lenses such as Nikon, Leica R, Contax C/Y, Contarex, ALPA and Rollei will be supported in the second half of 2013.
Canon EF lens (but not EF-S) support is planned in the future, but we do not have an estimated date yet.
The original run of the Metabones Speed Booster for NEX mounts has been met with widespread discussion, and apparently they work quite well — which prompted a large amount of interest in the Micro Four Thirds mount version.
Unfortunately, Metabones hasn't given any indication of why this delay has occurred. Hopefully any production hiccups will be sufficiently ironed out for the adapters to ship out in the second half of the year.