Adding its own contribution to the second screen revolution, Sony showed off its “Cross Play” functionality at its Monday keynote at the Electronic Entertainment Expo.

One of the titles that will support the Vita/PS 3 crossover controls will be PlayStation All Stars Battle Royale — a Super Smash Brothers-like title featuring characters from some of the PlayStation’s greatest hits.

Characters include God of War’s Kratos, PaRappa the Rapper (from...PaRappa the Rapper), Twisted Metal’s Sweet Tooth, and two new additions announced Monday: Uncharted’s Nathan Drake and BioShock’s Big Daddy.

Now there’s a fight I would like to see.

The game will have PlayStation and Vita versions, and gamers will be able to compete against each other regardless of which Sony device they have. There will be some downloadable content that will work across the PlayStation 3 and the PlayStation Vita. You’ll also be able to save on one gaming device and pick up your game on another.

Sony’s been less-than-solid on letting its players move their Sony data from one device to another, and the announcement would have been a welcome one — if Microsoft hadn’t upstaged both Sony and Nintendo with its Smart Glass announcement on Monday.

True, you can’t play, say, a Windows Phone against the Xbox using Smart Glass. But by busting out of its own ecosystem, Microsoft has lowered the barriers to making second screen interaction really catch on. Microsoft’s vision of the second screen will have a much greater reach because it isn’t device-specific.

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