Will an iPod 5 case fit an iPod 4?
An iTouch 5 is around an inch longer than an iPod 4 and also thinner. So no, definitely not.
Nope, different design or size i guess
No! Because on the 5 the screen is bigger and taller than the 4th it won't fit sorry! :-/
No. If you need to buy one, take it with you the next time you shop.