We are beginning to hear early rumors which suggest that we may well be seeing a release of a new PSP version, at the moment there is no hard-evidence, however a recent advert for “LittleBigPlanet accessories mentioned a PSP-4000”.
It is unclear whether this was simply a printing error or not, however it does seems like quite a strange error to make if it is.
Also See: PS3 4.65 firmware update live
Until we hear information from a reliable source we will have to treat this as a rumor, however if and when we find out more we will keep you informed.
Fort more details regarding the rumor check out TechWatch.
What features would you like the PSP-4000 to have?