The Jan. 29 of CNET's Buzz Report has a funny rant about Apple's recently issued patent on a multi-touch graphical user interface. (US 7479949) Complaining about the USPTO's examination practices, reporter Molly Wood cites examples of existing prior art on multi-touch technology. Her funniest line is "This is on Wikipedia... you could look this up!"
Back in September 2006, the USPTO ordered examiners to stop using Wikipedia as a source of information for determining the patentability of inventions. However, examiners and applicants continue to cite it. The number of patents issued in 2008 that cited Wikipedia articles nearly doubled to 508.