PlayStation Vita can be used as a PS3 controller – Destructoid
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Sixaxis - Wikipedia
PS3 motion controller revealed, God of War III due in March - GameSpot
PSP hacked for use with DualShock controller | Engadget
Third party dualshock 3 wont pair with PSP Go : r/PSP
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PS3 How To: Setting up Remote Play between Your PSP and PS3 – PlayStation.Blog