iCollapse: A mobile phone application for assisting those who are liable to collapse

iCollapse, using the accelerometer in the phone, tracks the user's movements and detects a collapse.
This sets off an alarm encouraging a passer-by to remove the user's phone and call the enlisted help contact(s).
It also includes instructions telling the passer-by as to how best help the user recover. The app locates the person using Google Maps. We hope to create a live service whereby when the person has collapsed an SMS is automatically sent to the help contacts or emergency services giving the necessary details of the user and their location.