I thought this deserved its own thread. There has been much talk about how the touchscreen interface is inferior for running trains. I totally agree. I actually think the the touchscreen is inferior in many applications because your eyes have to be on the controller in order to perform any action. It has no business being in a car dashboard, for example.
But there are add-ons to a tablet or smartphone that provide buttons, knobs, sliders, etc and sends those actions to the device.
Using something like this, operators could have the freedom to snap something like this onto their device and use the tactile control. Or leave it off and just use the touchscreen. Bam, everyone is happy. I really hope the train makers are considering this.
Here is an article and video showing it:
http://www.wired.com/2014/10/s...-physical-interface/
Here is an example of a typewriter for the ipad: