Even my 2nd gen iTouch, which doesn't have any glass on the back (metal), got its casing annihilated by sand that got trapped between the case and the body. (beach trip) People are not only paying a lot of money for these gadgets (significantly more than it costs to make them, I might point out), but, add to that the overpriced cases, which are usually bought to PROTECT things, and you realize Apple has a HUGE responsibility here. They either need to start coating their stuff with a scratch-resistant material, or helping people out when they get the burn. (or both, realistically)
The average user isn't going to buy something from Apple, then come home and setup a workshop to figure out all the bizarre risks that might come along to ruin things. Leaving millions of people to help themselves with this type of avoidable mess is thinking backwards, and doing nothing to keep smiles on faces. (people buy products based on the emotions they create... and, later, they RE-buy, in large part, if those emotions created a pleasant memory that they want to re-live. Unfortunately, Apple has been doing all too much lately to destroy this...)
