Sony Computer Entertainment America president Jack Tretton has stated that the PlayStation Vita’s sales are “acceptable”. Chatting with, the jovial executive admitted that he feels more comfortable about the console now than he did four months ago.

“In this industry, you can't get too high or too low, because it moves very quickly,” he explained. “I think there are an acceptable number - and [the number] we've sold: that's acceptable. If it was triple that, I'd be happier. If it was one-third, I'd be disappointed.”

Tretton noted that the PlayStation 3 also got off to worrisome start, but the platform’s selling extremely well now. "Anything with great rewards is going to come with great challenges," he continued. "We felt if the tech was there, and the game support was there, then the audience would be there.”

The Vita and PSP sold just 1.4 million units during Sony's previous quarter. By comparison, the PSP shifted 1.8 million units on its own the year prior. The platform holder expects to sell 12 million handheld consoles by 31st March 2013. It’ll be counting on the success of third-party titles such as Assassin’s Creed III: Liberation and Call of Duty: Black Ops Declassified to achieve that lofty target.