It happened in Diablo, so why not Blizzard’s other RPG, too? Slashdot is reporting that someone has found a way to duplicate items in World of Warcraft. While the details are sketchy, as many of the posts on how to duplicate are being removed, Slashdot has a link to one working post that has details as well as a picture for evidence (pictured right — though, admittedly, it could have been forged). The forum linked requires registration, but once you have that the post itself seems fairly legitimate. Seems to be a glitch that occurs due to lag.
Check out the full post over at Joystiq.