Portal opening

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Nerd Home, Companion Cube, Stem Classroom, Portal Game, Game Based Learning, Portal 2, Stem Steam, Half Life, Post Mortem

Valve's highly anticipated release Mac OS X release of Steam, its cloud-based game store and service, is set to be released as a public beta this week. AppleInsider offers a first look at the software with hands-on impressions and screenshots, including the first available titles: Portal and Team Fortress 2.

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