John
Thank you for putting the point so succinctly. That is exactly what I want to do. My layout is not equipped for automatic train control and I have no interest in this, I like to drive the trains myself, but I need to be able to walk around the layout so I can follow the trains. My layout is 30 feet long and N gauge so it is difficult to operate from a single fixed point.
The commander is wonderful for operating points from the track diagram and setting routes, but it is not good for driving the trains, hence the need for an interface to enable connection to the iPhone and iPad.
I don't find the wired handheld controllers very user friendly and I don't want long wires trailing around anyway. The iPhone software is ideal.
I think that Viessmann may be missing out on an important part of the market if they do not consider this very seriously, especially as they have not produced a handheld of their own, and seemingly have no plans to do so.
Regards
Jose