Bill,
The Ring Engineering system isn't quite the same as it still uses track power as part of the operation and I think may have been discussed in the DCC area. Railflyer seems to be similar to Protocab although they imply that you would have to use their Android-based Tablet PC as part of the operating system. I understood from the Protocab guys that an app, downloadable to any Android device, could be used for their system.
I was unsure where to put this thread in RM Web to generate discussion and only decided on this section as it is clearly both electrics and non-DCC, even though it has strong similarity to DCC in that the LCUs have much in common with DCC chips.
I have been a little disappointed that nearly 100 views have brought forth only two responses as it does seem to be a system with possibilities and it would be interesting to read more opinions of it.
Just to emphasise, by the way, that I've no connection with them and, as I said prevously, it won't work for me in 2mm scale.
David