[teh_david]

Being diabetic is a very high maintanence, and to really control it you have to go above and beyond what the doctors tell you to do.

By collecting and then analysing things like insulin doses and blood sugars, one can indentify patterns and hopefully correct anything that is not as it should be.

Collecting and analysing information is tedious, and that is where I imagine they want to help (see also www.sugarstats.com). I think that if they can make both the collection and analysis easier and hopefully more fun, then it will make it a lot easier for people who are trying to better control their diabetes.

To answer your first point, it is not that understanding or treatment is lacking, just that the more data and patterns you have, the better you can apply the treatments, ultimately improving your prospects.