Maybe just for standard's sake, make all values read the same. Like the upgrades change to x.y mil to buy, while your money counter never gets abbreviated, nor do the missions and their upgrades. I think if you make it read the same throughout, either abbreviated or not, it would ho a long way.
I think there should be an 'offline' mode - so that when I shut my computer down for the day, or whatever, and come back in the morning that there's a pile o' money waiting for me to do something with.
combats too slow. also, a guide to get you started would be nice. took me a while to figure out whats the best way to max resources and army...
also, some way to not watch city def battles could be nice