I'm playing a pbem game with bb82 and we were talking about africa and I was trying out a new US strategy, which was working out well, but we were trying to figure out what turn number it was. So much of the game depends on being in x by z, and having a by c.
For us gamers out there who like to keep track of game develoments by the turns, it would be nice to have a feature that kept track. Just some little box in a corner that had the number of the turn it was. I think this would go a long way to helping players figure out their strategies since it would let them know on what timescale they're accomplishing their various objectives, and whether they need to tweak things to get it sppeded up, or if they have opportunities to hit other places since they may have more time.
Of course, experience is usually the best teacher for these things, but I think a Turn Counter would be useful and easy enough to program in. It would be especially useful for pbem games since its easy to lose track of where you are when days separate turns.