I wonder if we'll see more of the spheres (chocglafane?). To me that made the series 3 finale very unsettling. Got to admit that I really enjoyed the build up & liked how it all panned out in the end. (except the whole fate of the spheres deal) Yeah it was deus ex machina time but the characters had to go through so much to get there. Rose only had to look into the heart of the Tardis while poor Martha had to travel around on her own for a year after averything goes kablewey.

It was neat & fitting to hear the Scissors Sister's "I can't decide" in the finale btw. There was also a song in the second part that sounded familiar but I couldn't place it.

Fair play!