My data point: Tentative "+1" for Pomodoro.

I use Pomodoro, but I don't take breaks (I have a lot of trouble returning to work if I do) - I use the 5 minutes to handle email, etc. The main advantage is it keeps me aware of the passage of time, and helps me pace myself. I am a student who spends most hours of my day studying lecture notes.

I've seen Pomodoro brought up a number of times. Should we put together a survey to tally how many have tried it, and how many have benefited?