Gartner declared open-source software the biggest disruptor the software industry has ever seen and postulated it will eventually result in cheaper software and new business models. Open-source products accounted for a 13 percent share of the $92.7 billion software market in 2006, but should account for 27 percent of the market in 2011 when revenue is expected to be $169.2 billion, according to Gartner research.
http://www.eweek.com/article2/0,1895,2186932,00.asp?kc=EWKNLLIN092507FEA1
