Just a few months ago, the Playstation 4 was not even a thought on Sony's collective mind -- at least according to Sony Computer Entertainment head Kaz Hirai.

But now, a different executive has fessed up. Work on a future Playstation platform is already underway, says Masaru Kato, Sony's executive vice president and chief financial officer. His comments came up when asked to explain higher research and development costs to investors, Eurogamer reports.

Sony's next video console, which at this point has no name or release date, won't require the kind of huge investment that made the Playstation 3 unprofitable for years, Kato said. With the Playstation 3, Sony invested in its own semiconductor facilities, but that seems unlikely this time around.

More: http://www.pcworld.com/article/228971/