So that was true. That's kinda gay though, do I need to buy all of em if I just wanna play in bnet with some friends or random bnet homos? Or how does it work?
The first game will be a complete game. It will feature the Terran campaign. The second and third games (which will either be featured as expansions or stand-alone games) will feature the Protoss and Zerg campaigns. Yes, you will be able to play on Battle.net (Battle.net 2.0!!) with only the first game.
Essentially instead of having 3 campaigns in one game, you're getting one massive campaign for each of the races. I'm going to go out on a limb and assume the second and third games will be priced accordingly.