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

That is the claim made in this eweek article. If this is true then this is changing the business environment. Such a major change will require companies to decide how they will respond to this change. For the major IT player the question becomes how can I lead this change.