A few years ago I sent this video and one other to Bachman, Hornby and Dapol explaining the virtue of such a system but none of them were at all interested.
And then about two years ago at the Kernow Model rail exibition I spoke to Simon Kohler on the Hornby stand, but again he just didn't get the idea, explaining that the electronics would be to expensive (when in fact they can be produced for penny's) .
It seems to me that either the manufactures just don't understand how track wiring is a barrier to not only existing modellers but also to newcomers, or they just don't want to invest in a new control system so soon after DCC,
The daft thing is that Radio control is DCC it's just that the commands are sent to the loco via a radio signal rather than through the rails.
Sure there might a bit of R&D around making a chassis shaped battery, but get the battery companys to do that for you.
This is not ground breaking technology, it is not expensive technology.
If Hornby can build a real live steam engine in 00 scale, taking existing technology and placing it in a model train is surly not beyond the wit and wisdom of such an esteemed company
The only problem I can see, is the manufactures inertia