The Lightspeed premium travel power in Champions Online. Or as it is lovingly refered to: The TRON travel power.
Ingame info for CO players: The power works in exactly the same way as Superspeed. It is only the effects that differ. The light trail is turned off during combat (so do not worry about a lightspeed team ruining your view or performance in PvP). I am told the light trail does not scale with the size increase of the magnifier device. So do not worry about a huge character the size of your screen running circles around you ;)