Thanks for sending in the ndas, it's great that you're happy to help out Indigo build better software.
At the moment - we're working on the getting the new gui for testing, we hope to have it out shortly.
We will be distributing with you the following:
* MacOS 32 bit build
* Windows 32 bit and 64 bit build
* Linux 32 bit and 64 bit build
The new gui is a replacement of the existing indigo gui, and is written in wxwidgets and uses lua internally.
Our goal is to "Make Indigo friendlier for new users and be a seamless part of experienced users workflow".
In particular:
* Provide a nicer interface for rendering
* Build a nice ui for tonemapping, light layers and other post-processing functions
* Make it easier to start network render jobs and send jobs to render farms
Thanks for being so patient - the new release should be out in a few days.

As for the mac build - does anyone currently use an Indigo exporter on their mac? What exporters work properly for os x macintosh at the moment?
Ben