After an extemel long wait the Zeiss 50mmf /1.4 SSM lens is finally shipping at BHphoto (Click here). It is also in Stock in Asia. You can find it in Stock at Digitalrev and on [shoplink 19177 ebay]eBay[/shoplink]. The lens should be in Stock within the next 2-3 weeks in EU and US stores too.
The Zeiss preorder are available at Amazon (Click here), Adorama (Click here), BHphoto (Click here) and SonyStore USA (via AlphaCameraDeals). In Europe at Wex UK, Amazon DE and Technikdirekt DE.