I don’t think I will be adding more functions to the graphics board. It can do what is needed (as far as I know now) so I think I will call it finished. 🙂 At least version 1.0. Maybe, in a few years or so, when better FPGAs are more affordable, I will do a juiced up compatible version. 🙂
A spec on the board can be found here.
Here is a version of the API, which is evolving all the time.