I want to see what others would suggest. I will be getting the white 3GS. I like the slider but I would prefer the matte backing, which the white one doesn't have. Which is why I like the grippy feeling I get from the Powersupport silicone jacket and how it comes with quality screen films. Will the silicone jacket stretch even if you don't take it on and off often? I mainly want to minimize extra costs, especially since on top of paying for the phone, CA charges tax on the unsubsidized cost of the phone, and not the 199 cost of the 16GB 3GS.