The video on top shows again the soon to be market Contax G to E-mount electronic adapter. It will be sold soon while the Canon EF to NEX version is now available on eBay (Click here).
Speed Booster news: The request of the adpaters is soo high that all Speed Boosters are out of Stock at Metabones website. The only exception is the Alpa to NEX adapter (yes Alpa and not Alpha!). And two adpaters are for sale in Europe (on eBay via Slidoo).