Needed a break tonight from working on the tracks (which, if you haven't been following, you really should), so I put together a concept model of a power pick-up wheelset to basically jumper between 9V tracks and PF motors. This would sort of give us the best of both worlds in that there are no batteries needed, but you still have independent control of the trains, or you could keep it rail dependent if you wanted. Before I get too carried away, would this be usable to the community?