you can use the cloud.
Iphone4s is much better.
Yes, it is! I just installed the iOS7 beta2 on my iphone 4s. It performs well on 4s. Actually, you can even install iOS7 on iphone4 and even 3GS. I heard the iOS7 is slow and stuck on iphone4 or earlier iphone edition. But it definitely works fine on 4s!
it is coming this fall
yes
some time in june
im not sure but i think only iphones and ipod touch 5th generation can get the ios7 update but im not sure.
about 6004
Nope. Just the 5th Generation.
Black and white
You cannot change a computer into a phone
The iPhone4S is a cell (mobile) telephone manufactured by Apple Inc. There are other telephones ('phones') made by other manufacturers.