Here is a BBC audio file (approx. 25 minutes) of Jorn Hurum talking about the Messel primate Darwinia. Toward the end of the interview, he discusses the "hype," timing, and method of the announcement. http://www.bbc.co.uk/iplayer/episode/p003lrtc/The_Interview_17_07_09_Palaeontologist_Jorn_Hurum/