There was no announcement of any major changes to the PSP platform at E3 2010, which was a surprise to some. Still, a posting by Japanese retailer Geo indicates a new PSP model may be coming.

Geo puts Gran Turismo 5, Monster Hunter Portable 3rd and an unannounced PSP-4000 model for a release in 2010. This could signify a redesign of the basic PSP hardware is coming, as has happened twice in the past.

Source: Siliconera