When Tropico 4 was announced, no specific release date was given, but a promise of 2011 was made, and is now being fulfilled. Those looking to fill the role of El Presidente on the PC can start their dictatorship on August 26, while Xbox 360 rulers will have to wait until mid-September.
I have never played Tropico, but from what I hear, it is a good time. I'm not great at strategy games, but the idea of controlling a country appeals to me. It seems like there is also going to be quite a bit of political intrigue and maneuvering, which is fun. One addition to the game that I personally like is the ability to put allies in office in order to make passing unpopular acts into law.