For anyone still interested in how AH runs on an Alienware M11x you need not worry. I have a M11x R3, Windows 7 Ultimate, 1.5 GHz i7, 8 GB RAM, 2 GB Nvidea GT540M.
It will run Aces High at a consistant 60 frames/second with all video settings maxed out. No problems, freezes or other hickups. I do use an external 24 inch monitor . The 11.5 inch netbook screen is a bit small.
My M11x replaces a maxed out Dell XPS M1730 gaming notebook and it does just as good or better.