I have the iphone 3G, 16gb, which works in every other aspect, mail, safari, I can send text messages, but can't send or receive picture messages, I know it can send, as my son used it previously and it worked fine, any help gratefully received!!
Might need a bit of a change to his diet. Eating more complex carbohydrates such as brown bread, pasta and rice to enable eating of items containing sugar.
Check with your diabetic nurse / dietician.