Features include:
Automated install of operating system, hotfixes and applications.
Full documentation and source code.
Support for floppy, CD-ROM, and "nothing but net" installs.
True unattended installation, not disk imaging.
No Windows servers required; use your Unix servers instead.
No Unix servers required; use your Windows servers after all.
Completely free.
Feel free to add more information that can be added to the introduction on sourceforge:
introduction on sourceforge