Jumping the gun: Batman in 2012

[Seil]

since there's nothing to actually say other than there is a release date,

Pretty much this, and the fact that I get easily excited. Also:

Originally Posted by IMDB on Batman Begins

Writing credits
(WGA)
Bob Kane (characters)

David S. Goyer (story)

Christopher Nolan (screenplay) and
David S. Goyer (screenplay)

Originally Posted by IMDB on The Dark Knight

Writing credits
(WGA)
Jonathan Nolan (screenplay) and
Christopher Nolan (screenplay)

Christopher Nolan (story) &
David S. Goyer (story)

Originally Posted by IMDB on Untitled Batman Project

David S. Goyer (screenplay)
Jonathan Nolan (screenplay)

Why are the writing credits getting shorter? And which Nolan are we praising here?