What is a Windowmanager? Strictly speaking, a Window Manager manages
windows - it is the Window Manager's task to arrange program windows on
screen in some defined fashion, and allow the user to move, resize,
iconify and otherwise manipulate these client windows, without the client
programs needing to do this themselves. 

Enlightenment goes beyond this, not just Managing Windows, but providing a
useful, good looking graphical shell from which to work. It is open in
design, and instead of dictating a policy it allows the user to define
their own policy right down to the minute and infinitesimal details; from
its functionality right on through to its looks.

Warning:  This code is highly beta.  It is a "development release".