What they seem to be ducking, Starcraft, is that while Unreal is cross-platform, in its vanilla state it wouldn't contain .INI references to renegade/paragon - that would be added by the developer specifically for their game.
As I see it having modded the Unreal engine there are two options:
1 - the current middleware automatically creates entries for all platforms, and it's up to the developer to remove them or ignore them if unused. This is plausible, and would explain the mass effect specific entries. However, a potential flaw for this is that the code would be littered with PS3 references which it isn't. However, however, Bioware could have tidied up the .INI file to remove the automatically generated PS3 references and missed a few, which seems plausible.
2 - they're fibbing a bit and at some point did either add the entries (perhaps asked by EA to check out implication of PS3 support) or test out the title for PS3 at some point, then didn't completely tidy up the .INI files and missed a few redundant PS3 entries.
As I've said in other threads, I doubt this proves ME2 will hit PS3, but the Mass Effect 2 specific entries indicate something interesting may have taken place at some point, and they didn't fully clear up afterwards.
But just saying the middleware is cross-platform doesn't actually fully explain those game specific entries.
Try to be reasonable... its easier than you think...
