Byobu is a wrapper for screens that adds a status bar and a bunch of other functionality to the command line.
If you use byobu alot you can add it to your .profile file.
Some Uses for byobu
Share a Session
This can be accomplished with Screens but much easier with byubu. The simplest model is to share the same account....
Basic Commands
byobu - will start or return to the last screen session.