Sony announced PSP2 as the Next Generation Portable or NGP
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Sony NGP: Next Generation Portable aka PSP 2
PSP2 Will Feature Double The RAM Of Xbox 360, No UMD - Game Informer
PSP 2: What we know about the new Sony Playstation portable
Rumor: Sony's PSP2 To Be Revealed Next Week - Neowin
Do you think PSP 2 will actually come? : r/playstation
PSP 2: What we know about the new Sony Playstation portable
The portable PlayStations were Sony at its most ambitious - The Verge