The highest selling PlayStation 3 exclusive used to be Gran Turismo 5 Prologue...yes, Prologue. With sales last reported at 4.65 million, you now know the importance of Gran Turismo 5's full release to Sony and the PS3. Now Kojima Production's Metal Gear Solid 4: Guns of the Patriots has over taken Polyphony Digital's preview output, with Konami reporting a further 0.65 million sales in 2009 (A... more.