Yesterday I gave a talk at Dorkbot. I showed off the smaller Wiremap, answered a bunch of questions, and did a VJ set with a few new components I built for performance purporses. The program (including new components) and the source code can be seen here. There were a few questions about the Wiremap 256. It's a lot bigger and it has a better resolution. If you want to get a sense of it's size and resolution, take a gander at the video.
If anybody has any questions or wants to play around with the code, feel free. If you want I'll be able to run it and post a video on youtube.