We’ve heard some rumors about an upcoming PSP refresh in the past — ok, a whole lot of rumors — but new information is casting doubt upon the details of previous information. 1UP is reporting that the new PSP will be christened the PSP Go! and will finally do away with that awful UMD system while taking on a slider form. In place of UMDs, it is said the PSP Go! will come in 8GB and 16GB models meaning a green light for game downloads. As for games, Sony is reportedly planning to have around 100 old and new games ready for launch time. Sadly those of you who were looking for a bit of dual-joystick action will be disappointed to note that according to this new rumor, a second analog stick will not be added to the right-hand side. Such is life, we suppose. Word is Sony will make the PSP Go! official at E3 next month and have it hit the streets in Japan in September with a US launch in either late October or early November — ensuring its inclusion in plenty of letters to Santa. And yes, the image above is a mock up.