Hmm. Plus if you drive each LED seperately, then you have to have seperate traces for each LED. Quite a complex PCB. I wonder what the Corsair PCB looks like.
Pretty simple since it uses SMD LEDs.
The point is not that the LED's are surface mount. The point is that since each LED is separately driven, you will have to have a individual trace running to the controller. If the LEDs were all one color you would only need three for all. I suppose there are a few tricks to reduce that but still you will need many many more traces.
Let me see if I have understood the conversation on this thread:
->corsair PCB must be super complex
->the PCB is probably very hard to design and might be filled with tiny traces which mean that modding might be very hard.
->the controller is probably also another PITA to design and Bipiphany or other modders might lose their sanity trying to do that
IE Those who want a similar RGB keyboard will probably have to bow to the inevitable and buy Corsair. And since switch changing involves desoldering many more points, it will be much more troublesome.
Conclusion: most people are not going to get RGB keyboards for quite a while. It'll take time before people come up with custom PCBs, controllers and switch housings suitable for RGB keyboard.