Gnus blurs the distinction between news and e-mail, treating them both as "articles" that come from different sources. News articles are kept separate by group, and e-mail can be split into arbitrary groups, similar to folders in other mail readers. In addition, Gnus is able to use a number of web-based sources as inputs for its groups.
Note that, as with GNU, the g in Gnus is always pronounced.
Gnus can also be integrated into the Big Brother Database to handle contacts in a highly automated fashion.
Some people say there is no feature (or something similar) in any MUA Gnus doesn't have - or if there isn't one ready, it can be done "easily" with few lines of emacs lisp.
To quote the Gnus Manual:
The named versions (whose first letters run backwards in the alphabet) are development versions, of "alpha" quality.
The odd version numbers, like 5.3 and 5.5 are for the Gnus versions bundled with GNU Emacs. The even version numbers are the unbundled releases. So for example, Gnus 5.5 is similar to Gnus 5.4, but bundled with Emacs 20.1.
Gnu set to take on Unix. (Free Software Foundation's Gnu software environment alternative to Unix) (Field Report)
Apr 01, 1993; Foundation moves beyond tools to OS Outside the Unix software development fraternity, a Gnu is an animal with a head shaped like...
GNU's Not Linux.(interview with Richard M. Stallman, founder of the Free Software Foundation )(Technology Information)(Interview)
Jan 11, 1999; Founder of the Free Software Foundation talks about Linux and how software wants to be free. Nearly 20 years ago, Richard M....