Such a great idea!
"LightLane was developed by designers at Altitude to encourage commuting by bike. The device attaches to the back of your bike frame and an illuminated bike lane appears instantly. Although the LightLane isn’t available to the public just yet, this product will give bikers the space they need on those all too many roads without bike lanes."
via Urban Outfitters.
ps - love that all the promo pics are shot in Boston :)