It's basically like Civilization, you start off building your first city then expanding, going to war, developing technologies, sharing tech, allying with friends etc.
But it's played online, prefereably with friends, but you only get to do so many moves per day. So rather than rushing the whole thing over a 5 hour slot where you can't really play a full game, you play over the course of a year or something, maybe you could log in on your iphone while on the train to do your moves etc. Then if you conquer your world you could then join other worlds that are at the same level and compete there too?
Would be cool no?
Like A MMORG but ruling a country.