no the ipod is round and the iphone is rectangular
Yes
yes.
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
There is no such thing as an iPod 4S. The iPod 4G stands for iPod 4th Gen. Such as iPod 3G. There is no such thing as iPod 3GS. There is an iPhone 4s and an iPhone 3Gs. There will never be an iPod with an s. : )
Ipod touch vs Iphone 4s. Iphone 4s can hold ALOT more data than the Ipod touch, also the Iphone 4s has a higher rating than the Ipod touch. Its honestly up to you but based on the people that have each its usually chosen that Iphone 4s is better.
It depends. If the iPhone 4 case is for the GSM model (AT&T) then you can put it on, but the ringer slide button will be partially obscured. If the case is for CDMA models (Verizon) then yes, it will fit because when Apple made the Verizon iPhone 4 they upgraded it to be slightly different, and that is the shape all iPhone 4S's are now. iPhone 4 are very similar in shape with iPhone 4S. If you really want, you can put the iPhone 4S phone into a iPhone 4S case. but it may seems no good in apperance, as they are not exactly same.
No the iphone 4s screen is slightly bigger in terms of dimensions, also the cut outs are different.
No as the iPhone models have different shaped housing, so they will not fit earlier protective cases.
Yes, generally speaking a case designed for the Apple iPhone 4 will fit the iPhone 4S as well. However, this is not always the case, due to a revision of the placement of the silence switch. The case manufacturer will typically specify if the product is compatible with both models.
No, the 2G OtterBox does not fit the iPhone 4S. The two devices have completely different form factors. The OtterBox 2G is designed to fit the 2G snugly and protect it. I don't think you'd even be able to fit a 4S in the 2G case.
The iPhone 4S does not come with and included gel case. However, a variety of gel cases are available that fit iPhone 4/4s. Gel cases come in many colors and textures.