Apple iPhone 4 (CDMA)
There are other avenues as well to protect the iPhone- Best Buy's Geek Squad Black Tie Protection is $14.99/mo, $0 deductible, unlimited amount of claims per year, covers physical and liquid damage but NOT lost or stolen. To make matters easier, you can pay the entire 2 yrs of protection upfront for $229.98 and save a large amount of money (do the math)
Some people are less prone to be dumb and leave their phone lying by itself in a public area. If you are very cautious about not using your phone, I'd go the Best Buy route- however ...