This just displays a full screen pi chart timer. You don't need to deploy this anywhere, just go to http://coderei.de/timer and see it counting down, becoming red in the end.
The default is a 5 minute countdown. But you can specify the amount of minutes as a hash:
Double click anywhere and the timer restarts.
Feel free to add those links as a shortcut to your phone's homescreen. You'll also get a nice icon with that.