(Edit: More info. Especially gesture recognition. Nintendo camera incoming.)
Apparently Nintendo worked with them on hand-writing recognition software for the DS, which is odd since the company was established on April 2nd 2012. Would be a little late for DS to make use of that, but maybe I'm not seeing something. More info.
Here is a not really mind-blowing video of PUX at the MOBILE WORLD CONGRESS 2013:
So, from hand-writing recognition to multi-screen codecs, it looks like they have their hand in a variety of UI research.