Yes, I used an iPhone case nit iPhone skin. Because iPhone skin is a sticker. It does not provide full protection to your iPhone. Go I use Gadgtezkart's iPhone cases all the time for my iPhone.
Yes, a skin is just a sticker. But honestly why would you when the case will cover it up?
The iphone 4s desigh as same as iphone 4, so you needn't worry about that ,my girl friend's iphone 4s use my iphone 4 case (buy form 708buy.com) all the time, I prove the iphone 4 case is fit to 4s
No, there is although an iPhone case for the 4 that has a keyboard that plugs and you can use.
Nope. They have different dimensions.
The iPhone 5 is shaped differently than the iPhone 4, so the case would not work. It may fit, but it wouldn't be as snug as a fit as you would want. It is usually better to buy the case for your specific iPhone.
No. In the iPod Touch's case, it is too thin. For other iPods, they are different shapes than the iPhone anyway.
Yes, the 5 case will fit on the 5s. iPhone 5 and 5s are the exact same size, but the 5c is slightly larger and thicker.
Apple did not manufacture the iPhone 4, it is a gift from Europa. Use them together use them in peace.
The Otterbox Armor case for the iPhone is indicated to be waterproof, which would mean that it would protect against seawater and freshwater. However, it is notable that the case is not waterproof if the headphone jack is in use.
The case is actually designed for the iphone. The hole at the rear and is to allow the infrared sensor to work. The hole at the front is designed purely for use with the iphone and is where the phone's ear piece would be.
It depends on where you live and when the iPhone case is dispatched. Also, you can use online chat to ask customer care for help and tell him where are you. Then, he will tell you how long it would take base on his experience.