There was a lot of good stuff this year, but also unfortunately a lot of the same stuff from previous years. Some quick standouts for me was the dark room's motion sensing orchestra (you would move your hands and all of the glowing machines would react in accordance to how you moved your hands), theOpenPnP group, and meeting the creator of Space Nerds In Space.
However, coolest thing I saw by far was the Shaper. This is one of those tools I just find to be magic. They had a really great demo, too.