And on the basis of this they think Linux will generate 30 billion a year within 3 years?
Red Hat != Linux
That 30+ billion figure is riduculous. Not only does it include mainframe and other hardware costs, it' incredibly inflated since current Linux+hardware incomes are less than $5 billion/year now.
As for the actual software, market leader Red Hat only grosses about $200 million a year I think. #2 Novell, like $100 million, total.
http://news.com.com/Red+Hat+tries+financial+tease/2100-1014_3-5234070.html?part=rss&tag=5234070&subj=news.1014.20
Plus like the Novell link in the post above, Red Hat is always having to restate results to keep their shell game going.
http://www.linuxworld.com/story/45593_p.htm
That last fiasco of restating several years at once is what started this recent nosedive in their stock price, rightfully so.
Linksys is another companie that uses Linux to make money, every one of those Linksys boxes you see at CompUSA is nothing but a small Linux Firewall with a web interface..