...But This One Goes to Eleven

Official word has come through the BBC that David Tennant will be leaving Doctor Who at the end of the 2009 series of four one-hour specials.

Cue rampant speculation on who the Eleventh Doctor will be. Since Russel T. Davies is also bowing out, stage right, we likely won't be seeing Sigourney Weaver wielding the sonic screwdriver. (However, if Steven Moffat is open to an American running the TARDIS, both Matt and I would like to see Mos Def take the role. He's already proven himself in another Douglas Adams-linked acting gig as Ford Prefect, so getting a handle on the Doctor should not be terribly hard for him.