You can preorder the new Blackmagic Micro Cinema Camera at BHphoto (Click here) and Adorama (Click here). It will ship in Mid July 2015. The Blackmagic Design Micro Studio Camera 4K can also be preordered at BHphoto (Click here) and Adorama (Click here).
A long list of special NAB deals has been posted on that BHphoto page (Click here).