From a rundown on August's TCA press tour for upcoming cable series over at The Futon Critic: It would appear that BBC America has slated Outcasts to premiere on December 10, 2010. Well, okay... that's technically still fall. ;)
ETA: Since TFC is a U.S. site, it doesn't mention the BBC1 transmission date, but it'll likely be the same week.
(p.s. ... yeah, we missed the Friday Forum post. If anyone wants to use the comments on this one as an open thread to compensate, go for it.)