I don't know why everyone is discovering this all of a sudden, I think three threads today alone.
http://www.blackberryforums.com/gene...-pregnant.html There is a water damage sticker on the phone under the battery cover. This sticker on the battery is not a water damage sticker. I believe someone earlier today came up with the best answer. That sticker is kind of like a fuse. If something shorts out, that sticker will "pop" and turn black.