i thought i read in that article it wasn't gonna have fees...maybe i should check it out again...
EDIT: ah yes, here is why i thought that - "Instead of having players connecting to a dedicated game server or online service a la Xbox Live, the dungeon master's GameCube acts as the server, allowing up to 30 players to connect and participate in the game." See, the company doesn't need to provide servers so therefore probably(and better not) won't have any fees.