AFAIK, from Ubuntu 11.04 , there wont be a separate Netbook Edition of Ubuntu. Just one ISO with Unity on it and it will choose Unity or Gnome Classic depending on your 3D-Graphics capabilities.
Also the lpia arch that was used for the Netbooks, has also been dropped for a while now. I am not sure how accurate these two points are, but I did come across them somewhere. Thanks, -- Nandan Vaidya
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