Yes
Yes.
What kind of question is that???? the iphone 4s of course!!!
For a full list of iPhone 4s Tips and Tricks visit apple.com/uk/iphone-4s/tips
There will not be an iPhone 4S for T-Mobile but you can get any iphone unlocked at unlockatt.com
Yes it will. iPhone 4s is a world phone, means, it will work with any carrier on any network (including CDMA & GSM). Ref: google "iPhone 4s world phone"
yes
The current latest iOS version on the iPhone 4S is iOS 6.1.3 considering iOS 6.1.4 is for the iPhone 5 only. iOS 7 will be available for the iPhone 4S this fall.
The iPhone 4s is the 5th iPhone that Apple has made.
It comes pre-installed on the iPhone 4S. It cannot be downloaded on any other device
iphone 4s
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That requires jailbreaking to put widgets on your iPhone. Currently there is a tethered jailbreak for iPhone 4S But it i highly recommended that you don't jailbreak.