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The PlayStation 4 will go on sale in November this year and it'll be cheaper than the Xbox One - $399 in the U.S., £349 in the U.K. and €399 - compared to $499 and £429.

It'll hit stores in the US on November 15 while European gamers will have to wait just a little longer until November 29.

Gaining favourable previews and plenty of pre-orders, the PS4 looks like the next-gen console to beat, and Sony says it was designed with an overarching theme of a "frictionless and seamless" gaming experience.

We've known that the PS4 will track both the controller in a gamer's hand, as well as their face, since the console's launch in February. But during his GDC talk Norden revealed some interesting ways that this technology will be implemented in games.

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For example, the old multiplayer split screen, divvying up television real estate when two or more players go at it, will be aided by this tracking tech. If a gamer gets up and moves right or left, his section of the screen will automatically be swapped.