iBlood (www.brandnewstart.be) is a free application,  which allows you to save your group blood and the one of  your loved ones. In case of emergency could be critical  to know this information, for instance for a  transfusion.
The application also provides compatibility between  groups through the function of “App purchase” inside the  application.

You can Add to your list even  the blood group of the  members of your family and your friends.
This is an useful app about health, because in case of problem, anybody will be able to know your blood group and make  an emergency phone call for you. This Can be another scenario in which personal user data con create value when shared and used in an ecosystem of players and communities of people.

And this is just the beginning.
In a few years health care will take a new twist with the possibility of creating drugs based on your genome. At that time each of us will carry around his own genome (it takes just 2GB of space) and the drug store will use it to customise the drug prescribed.