"Two of the major components that will be part of the
GNOME 3.0 desktop are GNOME Shell and Zeitgeist. The GNOME Shell
redefines the GNOME desktop by taking over the responsibilities of
the GNOME Panel in GNOME 2.xx along with the role of the window
manager (and it also supports Clutter for making a nice, attractive
user-experience). Zeitgeist in the simplest form is an event
logging framework to help users find files and other user activity
events in a structured way. Unfortunately, both Zeitgeist and the
GNOME Shell are running behind schedule and will likely not be
ready for GNOME 2.30.
"Red Hat's Owen Taylor provided a status update on GNOME Shell
where he shares that the shell is usable, but only a beta quality
release would potentially be ready before April. Messaging and
application browsing are the two key areas still need to be tackled
with the GNOME Shell followed by document browsing, accessibility,
and internationalization work.
"Following Owen's message, Mikkel Kamstrup Erlandsen chimed in
with a Zeitgeist status update. Zeitgeist has made a lot of headway
and already sports some impressive capabilities, but Mikkel feels
that Zeitgeist by March could be possible, though it would be
pushing it and cutting corners. Mikkel eludes to a later release
being the better option, at least from his perspective."