Twitter has always seemed to resemble IRC to me, at least in the way I want to use it. So since I signed up I've wanted twitter to be in my terminal on a screen. Here's how I didwant to do it:

$ sudo gem install twitter

Inside of a screen session:

$ screen -t twitter
$ watch --differences --interval=300 twitter timeline --force
or
$ watch -d -n 300 twitter timeline -f

So the problem is this doesn't work. The highline gem seems have problems with the output stream that watch creates.

UPDATE: Works on Terminal.app with macports' watch.