Nathanael,

Just curious how Traits differ from Dr. Charles Simonyi's "Intentional 
Programming". Also, how do you distinguish it from Mozart, and Aspect Oriented 
Programming?

Intentional Programming 
http://intentsoft.com/faq#q4 (Simonyi's new company)
http://www.aisto.com/roeder/ip/ (summary)
http://www.omniscium.com/?page=IntentionalFaq (more detailed summary)
A collection of some of his papers: 
http://www.stormpages.com/futureintent/FutureCodeIP.htm

Aspect Oriented Programming
http://directory.google.com/Top/Computers/Programming/Methodologies/Aspect-
Oriented/?il=1
(Is it just that Traits' aspects are not cross-cutting objects in a hierarchy?)

Mozart (Open Source)
http://mozart-dev.sourceforge.net/

Cheers,
Darius