When a game comes out, Order and Chaos is a good example, long term discussions of the game aren't really well suited for any forum. I know the danger of having a universal forum is that you have people talking about a universal game in three places. It would be nice if maybe universal was a forum, and the other two were sub forums of it, so people would be clear on the flow. Honestly, what I'd like to see most probably wouldn't like, but would be "Game discussions" only, and just put them all in one place. Then maybe people tag them as iphone, ipad, or universal so people can sort if so inclined. Like I said, this is more a problem for games that people play for a long time, Pocket Legends, Order and Chaos, and other level based games.
