The Apple iBookstore Twitter account accidentally retweeted an obscene message last night, reports 9to5Mac. The account also favorited the tweet, adding to the embarrassment for the company which has sought to limit sexually-explicit content on its App Store although it has not placed similar restrictions on its iBookstore. It is likely that whoever operates the Twitter account intended to retweet it on their personal Twitter account but did so while logged into the iBookstore account. (The offending word has been re
