Leap Motion SDK is available for developers.

Updates on Leap Motion Developer Portal

Leap Motion has updated the information on the portal for software developers. On site for registered developers available boot kits SDK versions 0.7.0. Microsoft Windows 7.8 and Apple Mac OS 10.6 and later operating systems supported for development. The size of the SDK boot packages is 34.9 and 32.9 MB, respectively.
Supported programming languages:

• C ++ (MS VS 2010 and 2012, Xcode)
• C # (.NET versions 3.5 and 4.0, Mono version 2.10)
• Java versions 6 and 7
• Python version 2.7

What's next

In the future, the company promises to start sending controllers for selected developers.

P, S. Developer portal address: developer.leapmotion.com .
Registering a developer account on this portal is different from registering a pre-order of controllers (although it is possible that these accounts are related to each other). In addition, there is a forum for developers, a link to which is available on the portal.