The head of PlayStation marketing at Sony America, John Koller, has stated that Sony would ideally like to see simultaneous digital versions of its PSP titles released alongside their retail UMD counterparts.

“In the back half of this year, we should see a good rise in the amount of content that comes to PSN for the PSP,” he told Wired. “We're aware that most of the content thus far has been for PS3, and that's based on the usage model and who has been demanding that content.

“But as we continue, and there's more of a desire from the consumer for PSP content, we're going to really increase the size and amount of content that's available.”

And when asked if he’d like to see the upcoming PSP versions of LittleBigPlanet and MotroStorm released on PSN at the same time as UMD, he responded: “We're looking at that kind of situation. We haven't really decided how the timetable will work on launches that are digital versus retail, but we are looking at digital versions of the games that launch on UMD, yes.”

Koller also commented on the success Apple has enjoyed with its App store, adding: “What Apple has done has really opened people's eyes, the entire industry, about how games can be created, they don't have to be created by 100+ person development teams anymore. They can be created by one or two people and sell well. So we obviously aren't sure where Nintendo is going. We've heard the rumors as well.”

The news comes following SOE boss John Smedley’s assertions that traditional retail remains an important part of Sony’s publishing plans.