Linus uses a Macintosh...

[Clinton MacDonald]

...running Linux, of course:

Friends:

<http://news.com.com/Torvalds+switches+to+a+Mac/2100-1003_3-5606030.html?part=rss&tag=5604443&subj=news>

"Torvald's response came quickly and succinctly. 'My main machine these 
days is a dual 2GHz G5 (aka PowerPC 970)--it's physically a regular 
Apple Mac, although it obviously only runs Linux, so I don't think you 
can call it a Mac any more ;)' he wrote."

The article doesn't say, but how much do you want to bet he is using 
Yellow Dog Linux? ;-)

Best wishes,
Clint

-- 
Dr. Clinton C. MacDonald | <mailto:clint DOT macdonald AT sbcglobal DOT net>