Sony gets serious about releasing games for its PlayStation Portable. The company plans to expand its downloadable offerings to include non-Sony games where everything is potentially available.

“In general there’s a lot of discussion about [publishers'] back catalogs that will finally find its way to PlayStation Network in the back half of this year,” John Koller, Sony’s head of U.S. marketing for PlayStation hardware told MTV Multiplayer. “PSOne is included, but everything is on the table…We look for some of those big hits from all of the past games in their history and look for ways we can bring them over. It’s not always easy. There’s obviously technical areas that need to be bridged. But when those are solved, consumers will see a wide variety of retro games and brand new games coming to PSN.”

So the sky is the limit for PSP downloads, but the question is: Do gamers care? Is there enough of a market for "retro" games to sell systems? Koller thinks so. “We know that 50 percent of our base, plus, is interested in downloadable games for pay, not for free, from the network,” he said.

  What games would you most like to see playable in portable form?

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