"Messaging built-in: Communication is an important part of the
modern desktop, but it's a hassle when you have to switch windows
to reply to a message. That's why GNOME 3 will let you continue
your conversations without changing focus. The ability to enter a
reply straight into messaging notifications makes instant messaging
quick and effortless.
"Distraction-free computing: GNOME 3 is designed to reduce
distraction and interruption and to put you in control. Our new
notifications system subtly presents messages and will save them
until you are ready for them, and the GNOME 3 panel has been styled
so that it is part of the background, not the foreground. These
changes allow you to focus on your creative tasks.
"Everything at your fingertips: With the new GNOME desktop,
everything can be quickly accessed from the keyboard. Press the
activities key and search: it's as simple as that. You'll love this
feature if you're a user who likes things to happen fast."