I thought that was Gentoo.
Intelligent installers are always welcome, I just have that nagging feeling that BSD-derivative systems were there (WAY) before MS.
You need something more than just a network installer that treats the network like a distribution DVD.
You need an installer that is extensible and flexible to handle things that weren't foreseen when the OS GM was made.
(Not meant to criticize Gentoo in case that Linux distro has a great dynamic network-based installer - but some of the *N*X net-installs are basically just ways to net-boot the DVD.)