this is aninterview withe kaz hirai http://www.gamespot.com/news/6156046.html

GS: Right. Now you mentioned the PSP hardware. Now obviously there have been rumors about a PSP hardware redesign. Will Sony have any news on that front anytime soon?

KH: No, right now we're comfortable with what we have. I mean, you probably have seen some of the numbers that were included in the Q1 earnings report from Sony Corporation and as far as the platforms go. Between PlayStation, PS2 and PSP, the PSP happens to be the fastest-growing product we've ever launched. I think we cleared 20 million units worldwide within the first what, about 18 months or so. And in the US, we've already cleared 5.2 million. Again, it's only been in the market a year and five months, so we're obviously very happy with the technology we've packed into the current PSP, and we don't have any plans to redesign the PSP at this point in time.