Just a guess, but I'm thinking that PDC 2005 will be the Whidbey/64bit windows PDC. If marketing has their way this seems probably. It's strange having read about whidbey for the last 2 years and yet it still hasn't released, BUT I'd rather
wait for some massive unveiling where MS gets the developer story right than have Whidbey out early.
Sure development and documentation should be done, but all of the labs, websites, tools, and tips and tricks need alot more time to bake.