hack for a new years party to control led lighting using rflinks. project details at the following link : http://jarv.org/wireless_blinkm.shtml
nice project. something like this is on my wishlist as well.
wouldn't it make more sense (and be cheaper) to use barebone arduinos plus normal leds with transistors instead of atmega chip plus and blinkM?
blinkM are quite expensive if you need a lot of them.