slvoid i think that the "breakthrough" is not just a better way to disperse the light, but a means of producing actual "white light" with an led. the problem up to this point has been that a weird blue hazy light is the closest you can get to white with an led.
also, the light dispersion aspect of this "breakthrough" is a really big thing. if you want to buy an led light bulb to replace your current incandescent lightbulb you have to buy one with between 18 and 36 or more individual leds to get the same lighting from say a 60watt bulb. they have to also be arranged in a special pattern to get the same lighting equally around the room (dispersion). that you can get the same kind of lighting from one led (twice the brightness of a standard bulb, actually, isn't it?) is pretty impressive.
as always though we'll just have to wait and see if this pans out and ends up being all its propped up to be.