Not really, it appears more to be liscensing issues, NOT code issues. A certain person changed the liscense to what he maintains is the exact same as the BSD license, but will not change it to the BSD license.
Also there is an advertising clause which is not good either. If you want more info than you need, check out the mailing lists.
Very long thread beginning here:
http://archives.mandrakelinux.com/co...2/msg04596.php
Mandrake's official statement:
Moreover right now the new XFree86 1.1 license applicable to the 4.4 release is non GPL-compatible, and prevent us from integrating it.
We know that it was not in the XFree86 team intention to prevent linux or BSD distributions from including new 4.4 version. They only want credits for their work, which they deserve.
We are looking forward to finding a solution for this embarassing situation, and are confident and open to the XFree86 developpers team for sorting this problem out.
Many distros are not releasing 4.4 (Pretty much EVERY major distro) so it would not suprise me to see this license to change soon.
Jkrohn