Official comment

Reasonable? Yes. Currently possible using the libraries we use? No.
We use a lot of 3rd party software libraries to enable all the little things that Maps Made Easy provides. There are inherent problems in how touch devices are different from standard input devices and these libraries have not been updated to support these differences yet.
Please refer to the following article for more details:
http://support.dronesmadeeasy.com/hc/en-us/articles/206449863-Touch-Devices