The App does what it is supposed to do, and it is well thought out. I can see where they can make improvements and add more features and can't wait for an updated version. I understand that the BlueRail system is designed for HO. I model O gauge. If you play with the App's "Advanced Settings", you can get it to work well with O gauge locomotives (using the BlueRail board). The board can't handle the locomotive current draw required to do a 20 car coal drag, but it does work nicely if you keep the consist small and light weight. Stay within the limitations of the hardware and don't expect it to do more than it is capable of. Most of all, have fun.
This is so cool
Major upgrades to steam and diesel sounds
Minor bug fixes
Improvements to TopSpeed
Improvements to "Tap Above/Below" Throttle