Ben, the 2011 have has the exact same geo as the others. It's also running almost identical tubing, howver it's shape has been moded to deflect rocks, not catch them
and they say is more aerodynamic too....very important ! for me is much more stable because finally in 2011 they made a size that suits me. the tubing are not the same , the chainstay has different welding and tubing...it is more strong ! (they say ;P)