If someone has to clarify why AA is disabled on ATI hardware and why, it it is the game developer, not some dudes like us on a forum...

As stated a little back, this is Assassin's Creed Dx10.1 all over again, except we don't know now what is broken in Batman, but we did know a year ago (or was it two?) that AC Dx10.1 was broken (lights through walls, absence of dust/particles and missing rendering passes), so i think we should hold our words until the devs make their comment and explain us all enthusiasts what happened.