I've just added this driver to the NC10 repository, using a different package name ('xserver-xorg-video-intel-2.8'). This way both driver versions (2.8.0 and 2.7.1) can coexist on the same repository.
To install the 2.8.0 version, use this command:
sudo apt-get install xserver-xorg-video-intel-2.8
The new package will be installed, while the packages 'xserver-xorg-video-intel' (the old 2.7.1 driver) and 'xserver-xorg-video-all' (a dummy package which makes sure all the official video drivers are installed) will be removed.
To restore the old driver version, use this command instead:
sudo apt-get install xserver-xorg-video-all
which will remove the new driver and it will install back the old one.
I highly recommend to stick with the 2.7.1 version if you plan to use the official ubuntu kernel (2.6.28).
If you plan to use the new 2.6.31 kernel from my repository instead, then do your choice. At the moment the 2.8.0 version has somewhat less performance than the 2.7.1, but it solves some bugs (the most annoying is the one which causes the image on an external display to freeze after some time) and artifacts when using opengl applications with compiz enabled.
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