Drumroll please...
Here it is. The Os X native version of Indigo with the new gui in place.
>> indigo.osx.0.1.zip
A few notes:
This is a beta version - it may have bugs and not be able to handle some scenes. But I want to know about all bugs you encounter. If you have any problems with the current version - post them onto this thread with some reproduction steps (ideally include a .zip of a minimal scene to reproduce the bug) and I'll add them to our list of bugs to fix.
There is more to come. There are lots of little things that need improvement, from the Indigo icon (which doesn't do transparency very well) - to having more configuration options in the gui. We also need icons for indigo scene files, better file associations.
I haven't included the blender and skindigo plugins. I'll work on those now - and hopefully release a version 0.2 of the os x beta very soon, with the blender and skindigo plugins and installers.
I'm looking forward to hearing your experiences.

Enjoy!
Ben