Okay, not quite like Tron, but the idea is brilliant -- literally: wheel mounted lights that make sure you can see the road and you are seen from the sides as well. Plus the effect is quite cool.

From the Kickstarter page:

Thanks for checking out our project. We hope you are as excited about revolutionizing the bike light industry as we are. With your help, we will morph the Revolights bike lighting system into an innovative solution used worldwide. We recognize these lights are different, but we're from the Bay Area where different is, well, sometimes better. People aren't used to wheel mounted lights, but simply put, we intend to change that.