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 iPhone 4s is the 5th iPhone that Apple has made.
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.
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.