Thanks Dave. "RailPro" is an interesting find.
For an new introduction the pricing is not as bad as one might fear and it looks a good system (e.g. €90 for a sound decoder), but for it to take off pricing would have to drop. Clearly designed by an engineer with a passion for the hobby. Hopefully he also has business skills to make go of it and get the NMRA on board (forgive the pun).
Its a catch 22, if he has a patent he may not wish to open it up to other manufactures unless through licensing. If its not adopted by most of the main manufacturers it will be another inventors idea consigned to history with a small dedicated follower base. Without gaining NMRA support it won't get traction. I don't know much about NMRA politics, but I've heard they are mainly a conservative base.
Replacement for DCC? Something like this is definitely needed to replace jurassic DCC and bring control from the 1980s into the 21st century. Ideally a revised DCC2 standard backed by NMRA which has the same variety of 6,8,9 and 21 pin connectors for co-exhistant and phased migration. If I was him I would try and sell the patent to somebody like Lenz or ESU, who have enough business clout to attempt a deal with other manufacturers.
Few observations:
Fast two way data is attractive
Decoder modules look significantly larger than current DCC decoders, but this could change
Other review videos show the 'auto discover' feature and auto motor tune which is really nice compared to DCC
Like the physical control for throttle combined with touch screen for programming and functions
If the control is exclusively via RF then an existing DCC powered layout should also be able to run locos with RailPro decoders driven by RailPro cab, just no power supply. (i.e. for migration)
IMHO, a DCC replacement needs a compact 'stay-alive' capability as standard.
Until a replacement for DCC has NMRA backing I wouldn't buy it, but I do hope it happens someday. NMRA means open market for interconnectivity between different manufacturers products, hence competitive pricing. Proprietary just won't fly.