One of the biggest surprises of the Sony E3 press briefing today wasn't new hardware - it was the appearance of one of the firm's most outspoken critics on stage embracing PS3.
That critic? Valve boss Gabe Newell, who has repeated criticised Sony's hardware and strategy in recent years.
But that's all water under the bridge now.
Portal 2, the sequel to Valve's quirky original game from 2007, is heading to PlayStation 3.
And it's also complemented by online service features powered by Valve's innovative, independent digital channel Steam.
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