MPX, multi-pointers on X11/Linux systems was amazing, back when it first came out around 2005, and definitely seemed like the future of collaboration. I'm glad that someone's making a go at productizing the concept and building a company around using it for collaboration. it gets me sad to see cool tech languish add research projects because of barriers, whatever they may be, to have a sellable product. Some make it though; Ksplice is one such product that had a successful company and exit that I can think of.