I started developing a health activity for the XO laptops long time ago, I started to write about hygiene and nutrition, and this was all I did at that time. Today the activity is far more advanced and it contains a vast amount of health information. Basically, the activity is designed for those children who are studying at the schools where the XO laptops are deployed, however, it has a good amount of information for the parents of the kids.
The activity is developed using HTML, it is really simple to access using any browser.
The children using these XO laptops are being assessed to see the impact of this activity on their life, and see whether this activity provides enough information to 1. decrease the incidence of common diseases (providing information about prevention of the diseases) 2. stop malpractices which are common around Afghanistan 3. decrease the amount of resources spent on medical facilities (provide information on how to treat some simple and common diseases at home).
The Children were assessed before they were provided with the XO laptops, they are being assessed right after they have the laptops, and they will be assessed later after they have spent some time with the laptops.
The activity can be downloaded from OLPC Afghanistan website, and the results of the assessments will be published there.
Musa Aziz's Ramblings 
Your activity is extremely great and I have a few suggestions
1-since this activity is used widely by families so if you can include information about important vaccines and about it’s importance in health care in maternal and child health section of the activity for increasing awareness among society it will nice
2-If you include a section in which you put links to external health related web site and references of publicly available books on health care,hygiene,first aid etc.
and finally make the activity expandable and adoptable of possible future expansion of the activity
Great new Activity that I hope gets more attention. Might you allow me to share this as a Guest Post (or an OLPC Afghanistan post) on OLPC News?