QUOTE(josh @ Aug 31 2007, 05:22 PM)

I think it's because the production started life as just a reading, with actors reading from their scripts sitting in chairs, so without set and movement etc, like a radio play, and it's now developed into a full production...so it will have a full staging with set and movement and no scripts etc.
Josh is correct - this started out as a fund-raiser (at, I think, the Comedy Theatre) for one performance only in December 2006, although it was not the original production of the play.
The version at Wyndhams is a fully staged (set / costumes / actors knowing their lines etc!) production.