In an interview with PC Games, Newell said that it is "certainly [their] goal" to include cross-platform multiplayer in the game.
"We never want to create these 'islands of players'," he continued. "You have to be sensitive to control differences, and make sure you're accommodating that, but, you know, our view is players should be able to play as part of a community on whatever device they can."
One of the first games to feature cross-platform play was Shadowrun, allowing players on Xbox 360 and PC to compete together. More recently, Valve's own Portal 2 enabled cross-platform multiplayer between the PlayStation 3 and PC versions through Steam integration. The Xbox 360 version of Portal 2 did not feature Steam integration or cross-platform play.
Ultimately, Newell said that the decision falls on platform holders whether to enable features such as cross-platform multiplayer.
"You know, sometimes there are contractual, or other issues that make that hard, where somebody, a platform holder, doesn't want you to do that for whatever reason, but our preference is always to let customers play and be part of the larger community," he added.
Counter-Strike: Global Offensive was announced by Valve prior to Gamescom 2011 for downloadable release in early 2012 on PC, Mac, Xbox 360 and PlayStation 3.