This oreilly article :
Canaries in the Mac OS X and Red Hat Coal Mines?
http://radar.oreilly.com/archives/2006/06/ubuntu_linux_a_threat_to_mac_o.html
made slashdot :
Nerds Switching from Apple to Ubuntu?
http://apple.slashdot.org/apple/06/07/03/1934251.shtml
The oreilly article links to this interesting post by Paul Bausch :
http://www.onfocus.com/2006/06/3811
