Has anyone done any programming/development with their Kinect?

I feel like the only thing I do with my Kinect is turn the console on with a voice command (and every once in a while "record that").

I remember several years ago I did a school project using Linux with a Kinect to do some computer vision and 3D point cloud mapping type stuff, I guess it was mostly installing and testing programs other people had made.

I don't really want to do the exact stuff mentioned above, but I'm wondering if anyone has actually been able to use their Kinect for anything interesting, and would it be possible to do any scripting for it on a macbook?

It's been so long I'm not really sure the best way to dive back into this stuff. Any ideas for fun applications or links to development tips would be greatly appreciated!