I love this buzzword: Continuous Partial Presence. Sounds like something from a Sci-Fi movie.
If you're trying to figure what the twitter is about all, Chris Brogan' 5 Ways to Use Twitter for Good from lifehack.org might get your started.
Or Anil Dash's Consider Twitter.
Maybe Dan Blank has it figured out with this headline: Twitter: Always Feel Important
Update: Another great Twitter guide.
More on Twitter
I signed up to see what all the twitter was about. Add me as a friend. Do you use Twitter, find it useful in the least?