As reported during the airing of Sora no Otoshimono, the series was originally intended to be 14 episodes long, however one was dropped due to being too controversial for TV. It has been confirmed that the dropped episode will air in June, more than likely as part of a DVD/Blu-ray release of the series. Personally, I can't wait, it's going to be freaking pwnsome!!! Loved this show, can't wait to see just how outrageous this episode is.
Info about the special:
Type: Special
Episodes: 1
Status: Not yet aired
Aired: Jun 2010
Producers: AIC A.S.T.A.
Genres: Comedy, Ecchi, Parody, School, Shounen, Supernatural
Duration: 24 min. per episode
Rating: None
Info courtesy Anime Newtype Channel.