The Big Round Cubatron by Mark Lottor was my favorite light piece on the playa this year. Eighteen thousand bulbs lit by LEDs hung from zip ties and paper clips (which delightfully swayed in the breeze) and were controlled by computer sequences. The patterns and rhythms seemed endlessly varied. Sure wish I tooks some night photos, but there are several from this and past year on the BM site and Flickr. There are also movies available through TV Free Burning Man (awesome video, see the 9.01 Art entry, it's the first piece featured) and YouTube.