Mindfulness bell app for iphones, android and computers

In Zen temples there is a tradition of a bell being rung at random intervals.  When it is heard everyone stops what they are doing and pauses for a few moments to breath, attend to their body sensations and feelings.  Its a very useful practice even and though we are not in a temple we can still pause in our daily life and pay attention to the body and breath.
The following apps will help you in this practice:
Here’s an app for the iphone: https://itunes.apple.com/gb/app/lotus-bud-mindfulness-bell/id502329366?mt=8 You set it to work between certain times and it will then ring at random intervals.  You have to turn it on each day for it to work so it won’t start ringing when you don’t want it to!
This is the same but for Android: http://www.appbrain.com/app/mindfulness-bell/com.googlecode.mindbell
You can also use an online version:: http://www.mindfulnessdc.org/bell/
The breathing space meditation creates a short break in the day and can be used when the mindfulness bell rings: http://cdn.franticworld.com/wp-content/uploads/2012/02/Three-Minute-Breathing-Space-meditation-from-book-Mindfulness-Finding-Peace-in-a-Frantic-World-128k.mp3