In addition to the 50mm f/0.95 lens, TTArtisan (different from 7artsians) will soon also announce a new 50mm f/1.4 lens for Leica M-mount:
Update: TTartisan lenses are available for sale at the PhotoRumors Online Store with free international shipping.
TTArtisan already has there lenses for Leica M-mount:
TTArtisan lenses are sold at Amazon and eBay.