Yes, it is the shortest name in Doctor Who history. From what I gather, the episode occurs in REAL TIME a la that shitty Fox show. Doctor Who has 42 minutes to stop. . .something from happening. It's in outer space, too, so no earth locales, finally. I guess the title is also a reference to former Doctor Who writer Douglas Adams. The buzz from the GAF Who fans says that this is the best episode of the season so far.
Also, the next two episodes after this are based off of what is apparently the most popular of the Doctor Who novels. The episode after those is by Steven Moffat, writer of coupling and perhaps the best writer of the new series (Girl in the Fireplace, The Empty Child, The Doctor Dances). After that, the final 3 episodes wrap up the Mr. Saxon story line. Captain Jack Harkness returns for those final three episodes, and Life on Mars's John Simm plays the (potentially?) nefarious MR. SAXON!
We are in the good shit people. DOCTOR WHO FOREVER!!!