According to the executive producer involved with the game's development, the PS3 will be getting a gimped version of the game in terms of content in comparison to the Xbox 360 and PC versions.
The Xbox 360 and PC versions were hinted to be having a special mode or feature involving game saves that stretched back to the first game in the series as a reward to the fans of the series. The PS3 will not be getting this treat due to never having ME 1 and the comic was only meant as a filler for the story and quick generator of stats for Mass Effect 2 on the PS3.
Also revealed is while the Xbox 360 version is getting Kinect controls for voice commands, no Move or headset voice controls will be done to the PS3 version.
http://gaming247.eu/2011/06/17/ps3-v...ay-be-lacking/