Clarification: What the Valve, and Sony partnership mean.
On June 15, 2010 Gabe Newell announced Portal 2 for the PS3, and said "Portal 2 on the PlayStation 3, would be the best CONSOLE* version."*(Note the word console meaning the best way to play Portal 2 if you have no way to play on PC.) I've seen alot of people take this to make it to use it for the stupid imaginary console war, because they think he said "Portal 2 on the PlayStation 3 will be the best version." Granted, it does come with Cross-platform play(Mac, and PC only cross-platform co-op, meaning you can play on Mac with PC, Mac with PS3, PS3 with PC) a digital PC download version of Portal 2. The second part is people also think Gabe Newell announced Steam for the PS3, which is also false. He announced Steamworks, which is totally different from Steam. Steamworks allows you to play cross-platform co-op, cloud game saves, and using your Steam, and PSN Ids to play with Friends when you play cross-platform co-op. Steam is a digital store for PCs, and Macs, if Steam was coming to the PlayStation you would hear alot more about it. Steam on PS3 would be too much competition for Sony, and it would probably cause some problems. Valve is a great company, and if Portal 2 is great success on the PlayStation 3, then more games from Valve on the PS3. Also you have to realize Sony is also helping Valve develop Portal 2, so it can be a success.