I've done some fun side projects on the original Kinect and also on the second Kinect that was re-released as Kinect for Windows. I remember marveling how drop dead simple it was to get depth and video working together and thinking how this was the technology that would let people do what were university-level projects suddenly in the span of a weekend.
I wonder why I don't see interesting depth camera applications making the news the way I used to 10 years ago.