Why do we need this intel installer ? It does nothing, especially for distros, that already comes with installed intel graphics drivers. It would be usable, if it would install latest drivers, i.e. now on ubuntu 13.04 mesa is 9.1.1, but there is released newer version 9.1.3, and so on, but now it doesnt.
And how does it work ? Does it check for newest released versions of all components, or just compares your current installed drivers with like "2013Q1 Intel Graphics Stack Release" ?