@xerocool
these skins are of high quality material with residue less adhesives. when you take them off, they do not leave any sticky residue behind. that is of course, if you are buying from a reputed skins seller.
@hellfire
yeah even I saw some of these skins at that stationary expo sometime back. the skins on display were quite nice. i also saw some great mobile phone stickers at the mobile phone expo last year. alas! I was not privy to the discussions on TE at that time and thought of the stickers as cheap look enhancers. LOL.