So basically they made X-Men's pin-table-thing? Probably loads of fun, but honestly I'm having trouble seeing the use. Rolling a ball around through the internet isn't exactly a day-to-day event, and is probably better accomplished with a Sphero.

edit: finally watched the video. impressively well developed, and a lot faster than I've seen before. So yeah, with a lot better resolution, it could be a thing. I'm not finding much in the way of actual details of how it works ("linkages" = ?), but it seems like it could scale kinda decently. I still think macro-actuators to micro-display is not the way to go in this, though it's probably a lot easier to play with.