I have started contributing to the OpenMoco project. It's basically a well thought out motion control engine and intervalometer that people can use to build their own motion control contraptions.
The first GUI is going to be based on the Touchshield Slide by liquidware. This is a very exciting time for us DIY moco enthusiasts.
The applet you see above is purely to test functionallity. There are already several people designing the look of GUI and I gotta say I like what I've seen so far. I will slowly add flashy buttons and sliders as the are discussed and agreed upon. If you want to contribute to the project I suggest you head on over to open moco forums and make yourself known!
You can check out the next iteration of the GUI here.