Actually, a recent article on appleinsider shows that Johnson & Johnson is coming out with a very small blood glucose monitor that plugs in to the charging port on the bottom of your iphone. it is very small, and records your blood glucose lever, tracks meals and levels, etc.
This will benefit iphone owners who are diabetic and do not want to carry around a blood glucose monitor and their iphone.
Here is a link to the article, with pictures, etc.
http://www.appleinsider.com/articles...c_blogger.html
Frank D.