It would be nice if Civ 4 had dual monitor support. I know it's probably a tiny market, but it would be a nice touch.

By dual monitors I would expect the main screen to have the map, and the other screen(s) to have mini map, city displays, statistics and stuff like that. If no dual monitor support, then windowed mode will do, cause windows could be opened and moved to the other monitor for constant viewing.

Of course, every indication so far seems to be a fullscreen mode, not dual monitor capable.