Here's a list of known episodes so far for the 2010 Doctor Who series.
1x01 - The Eleventh Hour
1x02 - The Beast Below
1x03 - Victory of the Daleks
1x04 - The Time of Angels (1 of 2)
1x05 - Flesh and Stone (2 of 2)
1x06 - Vampires in Venice
All but 3 and 6 are written by Steven Moffat. 3 is by Mark Gatiss and 6 is by Toby Whithouse.
More information here: http://en.wikipedia.org/wiki/List_of_Doctor_Who_serials