Despite some failings, I really like and appreciate the DCS handheld remote. Being able to see the train's speed in actual scale MPH is a fundamentally useful and fun thing. To my knowledge, no one else has managed to accomplish this, ostensibly due to a patent.
If any new company can somehow finagle a future command control system that operates all the command controlled equipped engines using the basic DCS handheld platform with scale MPH it'd be a welcome product, at least to this old fart.