Commuting light

Light-Emitting Commuter Gear

I'm new to and one of the first articles I read was the news piece in the link below.
It made me think about this sort of light-emitting gear and how brilliant it would be for my commute this winter. The whole idea of permanently giving off light is a no brainer to me when it's dark - the cyclist would be so much more visible and safer. Anyone seen any of the Proviz gear on the roads?