Ico and Shadow of Colossus?
Uhm. That Journey three pack.
Demons Souls, Gran Turismo, Heavenly Sword, Metal Gear Solid 4, Motorstorm, PixelJunk, Heavy Rain, Warhawk, Wipeout, Twisted Metal, Killzone/Killzone 2.
Upcoming must plays.
Beyond: Two Souls (From the Heavy Rain guys)
The Last Of...