COVER FOR THE CURE: Still need a case for your iPhone 3G or 3GS? Wanna help in the fight against cancer? Check both off your list with these customized covers offered by M.D. Anderson Cancer Center's Children's Art Project. The cases feature designs from the art project, and the proceeds go back to the Cancer Center for research and treatment. P.S. You may have bought some of the center's holiday cards in years past -- this is just another way to contribute to the cause. GET IT: Children's Art Project, $40.