Microsoft's Steve Ballmer was quoted in 2001 as saying that "Linux is a cancer that attaches itself in an intellectual property sense to everything it touches." Years later Bill Gates would equate the open source movement to communism. In our cover story of May 21, 2007, editor-at-large Charles Babcock reported that Microsoft was still at it, asserting that 235 of its patents (it wouldn't quite say which ones) were being infringed by the Linux operating system, OpenOffice application suite and other open source code -- and implying that it was ready to haul customers of that offending software into court. Our magazine cover "Play By Our Rules Or The Penguin Gets It," featuring a gun held to the Linux penguin's head, poked fun at Microsoft's tough guy stance. It was our homage to National Lampoon's famous "If You Don't Buy This Magazine, We'll Kill This Dog" cover of January 1973. Wrote one reader: "Kudos and huzzahs on the May 21st cover. I haven't seen a more enjoyable cover since National Lampoon. Thanks for the chuckle."