FYI. I thought that I'd found something new, but it's already showed up on some threads in other sections of Bike Forums. Interesting concept. Anyway, here's the lighting product: http://revolights.com/ . At $250, they're not cheap. And if I did my calculation-conversion right, they'll come in at 46.56 grams/wheel. The site says that it's incompatible with deep V rims.