I see the attraction. Certainly for the smaller scales, where a layout is in one room. then not a problem..
For larger scales, and outdoors, then distance *may* be a problem??
Biggest downer is the (present) lack of alternative sound options, and the same as a CS2 on a smart-phone.. What happens when a call comes in!?
"then distance *may* be a problem??"
How many backyard garden railways have more than 100 Ft distance from Transmitter to Reciever ?
I am in Australia on an average 1/4 acre house block and my ordinary house wireless phone works down the backyard. My house is 16 metres long with a front yard of 3 metres and another 6 metres to my back fence a total of 82 feet, I certainly would not try to control my trains from the front yard.
As for sound I have sound built in that runs of the motor voltage (Mylocosound) so no issue for me.
I would run this from a dedicated tablet and as I do not use a mobile phone for my comms (connected to a wireless phone via a fibre network) then no issue there.
Plus who the hell wants to take their phone out when playing trains ???
As for using it outside, there are sun filters or just the old fashioned turn you back to the sun and use your own shadow, works for me.
Today I saw a demonstration by a "nerd" (read a person still learning to shave and has a lot more education than me) of a Lego EVA mindstorms brick that used Bluetooth to control a robot by a smart phone app.
He was controlling it across a shopping centre open space over 50 feet away.
I quizzed him about it and it is basically an ESC controlled by a app. As the "nerd" moved the control on the smart phone screen the robot moved, he told me that it works just as well on a tablet. It was exactly the same as my traditional 2.4GHz transmitter control.
Its a brave new world gentlemen and we are no longer in control.