For Example on Amazon i want to buy an Ipod touch 4g cover, but most of the covers i have say Iphone 4 4g?
Do they both (Ipod touch 4/ Iphone 4 use the same cases?
The iPhone 4G and iPod touch 4G do not have the same covers because the iPhone 4 is thicker than the iPod and the iPod is thinner, if you tried putting an iPhone 4 cover on the iPod, it would be too big. If you did it the other way around, it would be too small. My advice for shopping would be...
1. Amazon
2. eBay
3. Best Buy
4. Target
5. Any local store in your area if you have the time to go out and purchase one.