Over the weekend I met the incredible Maurice Blackburn. He is a weaver that has built 2 looms from scratch. He then built a computer controlled system for one of them using an Arduino. He wrote and article on it that appeared in the Oct 2012 Complex Weavers Journal.
I ran into a snag on my loom build. I have it set up for 16 shafts, but it is only 22" wide and that doesn't leave me enough room for more than about 12 treadles. Adding an electronic dobby will solve this dilema for me! I plan on building one for my loom the winter.