Fairly certain the LEDs he was talking about were the turn-lane indicators, that warn a turning car if a bicyclist is on the way. That's kind of amazing, and would potentially do wonders in a city like NYC. We already have some separated bicycle lanes (with obstructions between the cyclers and the autos), separate bike traffic lights, but only in a very few spots (8th avenue has a large stretch).

One of these days I'll get one.. :)

Also, if you watch the video he mentions that it's taken thirty some odd years to build out this infrastructure, and that it used to be a much more car-centric city.