When this was first mentioned at E3 last June Tycho from Penny Arcade had this to say about it:<p>For people who game primarily on consoles, you might not know what it means to have Steamworks integration. It varies depending on the implementation, it's sort of a la carte, and the PSN itself delivers some features by default. But you wont be paying for DLC on Valve games, ever. That is not a thing that will happen. And since Microsoft won't allow you to charge for something that is free on another system (recall R6: Vegas, or Burnout Paradise) it's an end run that's given Valve a lot of leverage. To sum up, Portal 2 isn't the surprise - Steamworks is the surprise. The porous nature of the PSN's functionality is an amazing opportunity for a company whose platform practically defines "platforms." Plus, there's no license associated with its use. Think about what this means for other developers, up to and including first parties. Why Sony would cede this kind of power to a third party I couldn't say, and why they would undermine the Playstation Store as a venue for premium content I couldn't tell you. This is important; we should be paying attention.<p><a href="http://www.penny-arcade.com/2010/6/16/" rel="nofollow">http://www.penny-arcade.com/2010/6/16/</a>