According to Sony president of product planning Naoya Matsui, the company has been planning a UMD-less PSP since the launch of the original handheld system, but was simply waiting for the market for digital downloads to mature.
"We wanted to release it when the delivery of digital content was on par with the delivery of physical media. Thats what we've been working on these past two years. We'll be selling the PSP Go alongside the existing PSP models, because it's a product targeted at those people who are more accustomed to digital content."
Sony officially launched the PSP Go at the E3 Expo event, and the handheld, besides removing the UMD drive, adds a slider design and and is slimmer than previous models.











