Hi all, here are the links to a couple of interesting articles about Unicode fonts and Linux that I bookmarked some time ago, hope you'll find them useful:
KMFL lets users change keyboards on the fly http://www.linux.com/article.pl?sid=06/03/13/1829212
[A linux equivalent of the well known Keyman keyboard mapping software under Windows]
Graphite: Smart font technology comes to FOSS http://www.linux.com/article.pl?sid=06/03/15/1649204
[A "smart font" technology comparable to OpenType and Advanced Apple Typography, available for both Linux and Windows]
Ciao