Being able to mimic the Sun's 'perfectly white light' is brilliant. Many people find CFL's really annoying.
Almost as cool though is the fact that it can easily be built in any shape desired, as it sounds like you run a change through a surface instead of having a specific light-generating element.
The example they give is of a 2x4 'panel' replacing CFL's in offices, but could imagine some fantastically cool applications of this in interior design.
