Yes, the 3G and the 3GS are a different shape than the 4 and 4S.
Samsung because the new iPhone is basicel like the iPhone3 + It does not work
they are different in size and shape, can't you replace iPhone 2G case with iPhone 4 case.
The Iphone 4 allows music to be played and hundreds of available applications from the Ipod store to be used. The big drawback is that it does not support flash.
No, they have different shape and different size. iPod touch 4:110 x 58.9 x 7.2 mm iPhone 4:115.2×58.6×9.3mm
No it is the same shape as the iPhone 4!
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.
Rectangle with round corners
nope it will be too big and the wrong shape
Yes, you can get an iPhone 4 with 16GB. The iPhone 4 comes in three different GB capacities: 8GB, 16GB, and 32GB.
no, they are completely different designs
iPhone 4s has a better cam thinner faster siri
Not really as there is differences in the operating software and different hardware on bother versions of the iPhone.