For instance, Chief Executive Steve Ballmer once famously called Linux and the open-source philosophy a "cancer." More recently, Ballmer has changed the tone of his rhetoric: "We compete with products. We don't compete with movements," he said in a recent interview with CNET News.com.
And when I was just about to say that JBoss sucks a lot on Windows:
And Shaun Connolly, vice president of product management at JBoss, said that more than half of its customers use the JBoss Enterprise Middleware System product on Windows.