A fairly official looking (minus some spelling issues) sign counting down to February first and the launch of Diablo III began appearing in Best Buy stores in North America over the weekend.
This obviously led to a lot of speculation and Joystiq.com dug a little deeper to reveal that the sign was seen at a Rochester, Minnesota Best Buy where it was probably made in store, and taken down as per general manager orders as the publisher was "not very firm" on the release date. Meanwhile Blizzard has responded to the sign by restating that no date has been given to the game and that we should await official word. Wait and see in order words, but hopefully this is a case of no smoke without some kind of fire...