Marty - I completely agree!!! 
for my fulltime job I test software and help roll it out. Often times during rollouts we run into unique scenarios that we need to find a cost effective way to solve. Are they bullet proof? Nope they definitely are not, but they accopmlish the task effectively as long as you are aware of the nuiances. This "Default Route" idea falls into this category in my opinion
My more hopefully suggestion is to have a yard mode speed limit. I think that would be super useful, but I can't wait to get the hardware and test out the app!
The App, unless closed and released from memory (home button 2x, press the "X") will retain the last state of the switches. A button to reset to a default route is possible. Just remember, there is no feedback, thus a non-derailing switch operation will toss it out of sync again. The ASC2 will be able to report the switch position, and it can remember and report status.
I am thinking we could make a new Sensing module device that monitors the switch and reports the state, much like the Lamps on the Fastrack switch change color depending on the position, the info is there to query. Folks that want the real time feedback can have an option for detection in this way.
The Yard mode has a built in speed limit by default.
