LittleBigPlanet accessory says compatible with PSP-4000, ad agency says “a mistake”

Sony has never acknowledged the existence of PSP-4000 but when you have an accessory maker advertising their accessory supporting PSP-4000, it sure is bound to attract eyeballs.

Nevertheless, the ad agency that placed the ad has decided to come clean by saying that the PSP-4000 mention was nothing but a “mistake on their part”. We’re not sure what mistake were they referring to – a mention of a console that never existed or accidentally spilling Sony’s upcoming console? Remember, there’s no smoke without fire.

• Sony PSP2 will have touchscreen, two cameras and a powerful CPU
• Don’t call it PSP2 or PSP-4000, its PSP Go!
• PSP-4000 is not PSP2 but will get a complete makeover
• Sony PSP2 rumor squashed