@Aoitora, what do you mean by the 2x RoWar thing? I think I am as confused as Lazarus on this... do they stack now or something?
Weighing in on this ugly ally debate (thinking its a bad idea to join in as he does so), the idea of allies makes sense on GW's side (more sales, etc) and can make the game much more interesting, and somewhat fluffier (you can use an elite space marine strike force to back up your IG, or have the Eldar and DE team up to fight a common foe - ok, maybe that isnt too fluffy, but the imagery this brings is pretty cool). And it does make things more powerful, but at the same time helps out older codices that a trailing behind.