For All iDevices. Found this out by accident actually. It is really simple. At the end, you will get a smooth Liquid-Metal-like feel and a clean, polished iDevice. What you need is: 1) Your iDevice 2) A microfibre cloth. Can be found in spectacle cases when you get one. 3) An oil based cleaner. E.G. ArmorAll (Google if you want to) Link at bottom. (Make sure it is the kind for your iDevice's material. E.g. iPod Touches have a metal backing.Find a metal suitable spray, plastics spray also work.) 4) About 10 Minutes of your life. Now, spray the oil based cleaner and wipe. Wipe until you see nothing left but leave it moist and let it dry by itself. It will be good if it is either alcohol based or fast drying. Make sure it is not completely dry when you are finished wiping. Wait for a while or go do something else. When you are back, the cleaner would be all dried up and if you look with light reflecting off the glass or aluminum, you would see this odd rainbow-like array of colors you see in crude oil or petrol. You can go to your nearest gas station to have a look at the oil/petrol spills there and you would get what I mean. Now you have a slippery yet tight grip, which feels kind of like Liquid-Metal. It is smooth and your hands would not feel oily at all after holding the iDevice. Works well on either Glass or Aluminum backings. Also woks well on screen protectors. Just make sure it is not corrosive. What I used : Original protectant. As I said, I found this accidently, so don't go about saying what I did is bad and such. UPDATE 1: At the request of Vegeta, I have added three photos of the materials I used. Not in the pictures is my iPod Touch. Got to get my other camera, since I used my Touch's crappy camera to take these pictures. I obviously cannot take a video of my iPod using it's camera can I? Armor All Polish (not necessary) Microfiber cloth Yes, you can see my feet at the bottom. All these stuff are real old polish/cleaners from my father.END OF UPDATE 1. May, or may not make a video tutorial.