Neither Apple nor AT&T sell the original iPhone. However it can still be purchased on eBay and other 3rd party sites. But I caution you, the price will be slightly higher than the original $400 price tag.
Yes
the 3gs is much better for it's money iphone 3gs is better, i think. but it is very dear. it seems that you have enough money. if not, you can buy cheap phone instead.
just get an iPod Touch instead. its only a 1 time fee, instead of being paid monthly like you would with the iPhone.
Yes
iPhone 3gs are more roundish and without Siri. The edges instead of being straight are round. The iPhone 4g has square edges without Siri. The iPhone 4s is just like the 4g instead it has Siri. The iPhone 5 is longer and has Siri. The iPhone (original) has round corners and is small. Same with the iPhone 2. If you have a iPhone or iPhone 2 you can replace them. Also, the iPhone 3gs is not out so you cannot buy it anymore. Only the 4, 4s and 5 are out. They will be getting rid of the iPhone 4 soon.
No, they are two different iPhones. THe 4S is the slightly older, thicker, shorter, 2011 edition of the iPhone which you can still buy at Apple for $99 while the iPhone 5 is currently the latest iPhone.
A Poyo Stylus is A Stylus for your Ipod touch or Iphone. You can use this Stylus instead of your finger. (Buy it at Amazon)
ok so i think that i sidekick lx is better because the iphone is cool but it's expensive and it takes years to type with. what i'd do if you've got an ipod touch 2nd generation download truphone it makes ur ipod become a phone so instead of buying an iphone buy an ipod touch and a sidekick lx if you want an iphone i still wouldn't buy it because all the apps and music don't make it a phone right?
to carry it around with you and instead of walking over to a hooked computer. you don't need a laptop just get a iphone way cheaper
No FIFA 10 is not available anymore, but you can purchase FIFA 11 and 12
Yes, but you would need to do so over Wi-Fi.
On the App Store. It should be installed on your iphone right after you buy it. The iphone should be at least 3G or later.