I realize it's a bit late, but here's an HTML version of the introduction, StatelessLinux.pdf, which Havoc Pennington referred to at the start of the Stateless Linux project thread.
http://citethisbook.net/Red_Hat_Introduction_to_Stateless_Linux.html
Something unusual about the original PDF prevents copying and pasting in xpdf and, I hear, even in Adobe Acrobat Reader 6.0 under windows. The problem also affects xpdf-utils, causing pdftotext to print garbage.