Looks like Captain Jack Harkness is getting his own series. Torchwood (as it will be known) is going to be written by Russell Davies, and feature the further adventures of Doctor Who's Captain Jack. Apparently, it will be "adult" oriented.
I think this sounds like a great idea. Jack was an interesting character, with an as yet unprobed back story. I warmed to him far more than I thought I would during the few episodes he appeared in, and I look forward to learning more about him.
At the end of the day, this is a new, original, sci-fi series from the BBC, and that can't be a bad thing. More please.