... a free, ad-supported version of the Mac operating system, and in 2008 he filed a patent on a version of the idea . Microsoft considered making an ad-supported version of Windows in both 2004 and 2005. Neither company tried that tactic, but the idea ...
http://www.technologyreview.com/view/513831/steve-jobs-patented-an-ad-supported-operating-system-facebook-built-one/
http://www.technologyreview.com/view/513831/steve-jobs-patented-an-ad-supported-operating-system-facebook-built-one/
