Seems pretty cool, although the one thing that could be an interesting use case/disaster is what happens if the sink is full of water, (either due to the drain being plugged or inadvertently clogged) will the flow of the air spray all the water out of the sink and all over the user/bathroom?
Could be a fun set of fail videos, but I still like the concept. I get geeked out when I go to a place that has the airblade.