nice idea, but unfortunately I do not see this becoming 'big' for a couple of reasons. For instance, even though one can buy LEDs advertised as having a 'warm' colour, the light produced is still rather harsh compared to halogen for instance. Most people do not want an entire house, or even a single room, lighted purely by LEDs. Same goes for the colour: on paper it's nice to read that colour can set a certain mood and such, but is there really any practical use? Who wants to sit in a blue/green/red room anyway? Another factor is that it seems to be a small subset of an actual existing but practical system: current domotica systems can be controlled by your smartphone, by a pc, over the internet, you name it. And there are already dozens of them.