Eh, someone mentioned I use these over on the game programming board. However, that sort of escaped the scope of that board. Anyway, I asked several people and none of them really had any idea what they were or how to use them. I guess I'm wondering if any of the guys on this board know what I'm on about. Because I sure don't.
(Really sorry if this counts as illegal cross-posting. I honestly don't think that this fits with in the scope of game programming though. From what I've heard, it's somewhat advanced and has a wide range of applications).