* Leo is a programmer's editor and a flexible browser for projects,
programs, classes or data. Leo clarifies design, coding, debugging, testing
and maintenance.

* Leo is an outlining editor. Outlines clarify the big picture while
providing unlimited space for details.

* Leo is a literate programming tool, compatible with noweb and CWEB. Leo
enhances any text-based programming language, from assembly language and C
to Java, Python and XML.

* Leo is also a data organizer. A single Leo outline can generate complex
data spanning many different files.  Leo has been used to manage web sites.

* Leo is a project manager. Leo provides multiple views of a project within
a single outline. Leo naturally represents tasks that remain up-to-date.

* Leo is fully scriptable using Python and saves its files in XML format.

* Leo is portable.  Leo.py is 100% pure Python and will run on any platform
supporting Python and Tk/tcl, including Windows, Linux and MacOS X.
Leo.exe runs on any Windows platform.

* Leo is Open Software, distributed under the Python License. 

The above shamelessly copied from this page:

WWW: http://personalpages.tds.net/~edream/front.html

-- AlanE <alane@freebsd.org>