Luc asked me if the Nokton and SLR magic f/0.95 lenses are the fastest you can get for MFT. Actually the answer is no! Kenko Ibelux for example will launch a new 40mm f/0.85 lens by end of this year (save this Slidoo search to get notified when it will be for sale on eBay). Price isn’t set yet.
And on eBay there are plenty of fast lenses and some of them you could use with adapters on MFT cameras (althaugh they will vignette and have a creamy image rendering). Right now for example you can find the [shoplink 37538 ebay]Zoomar IRAN f/0.8 (acution here)[/shoplink], the [shoplink 37539 ebay]Japanese Apollo 25mm f/0.85 (acution here)[/shoplink] and the [shoplink 37540 ebay]Leica Leitz 65mm f/0.75 (acution here)[/shoplink].