Joystiq is reporting that the PlayStation 3 version of Tom Clancy's Splinter Cell Trilogy HD is curiously lacking the option to invert aim on the gamepad. The Xbox 360 version retains the feature, possibly because the games involved - Tom Clancy's Splinter Cell, Splinter Cell: Pandora Tomorrow, Splinter Cell: Chaos Theory - are all Xbox games that are backwards compatible on the Xbox 360. This would seem to indicate the PS3 version is more or less a quick port.