My friend Scott randomly dropped by the macetech LLC lab up here in Pullman, WA. He brought a cool thing to show off...a big array of 60px/m RGB pixels using the WS2812 LEDs. It's very bright in person and I was impressed with the matchup of the 60px/m LED spacing and the fluorescent lighting louver grid. I've definitely used the grid in a lot of projects, but never made that connection! His controller uses a custom WS2812 library running on a Digilent chipKIT Max32 with plenty of CPU power to spare.