My fantasy Diabetes Device would be to lick a little bit of powder every morning. This would make your pancreas kick in and produce insulin for the day. You don't need to test or inject at all through the day and when you're sick you only need to test once a day!
Today is my 365th day of having diabetes. It's approximately 1,460 injections. Breaking record!!!!! :) I got a pair of Wild Goose 100% Australian sheepskin uggboots (knee high). No cold feet for me :XD