Nice game, I play tutorial and first mission.
As casual rts gamer (on PC), I think that it could be nice if we can bind group of unit (like Ctrl+1…9/1…9 in starcraft or C&C) but I understand that it could be irrelevant on smartphone.
An other problem I have on PC is the scroll: when my mouse quit the applet zone the scroll stop. it could be very annoying wen you are in the middle of a fight. Maybe it could be interesting to not stop the scrolling.
Great job and good luck!