Only one as of now, AT&T.
The Iphone is nationally supported at AT&T and Verizon. Although it is not recognized by cell phone companys you can have your Iphone unlocked so it will work on any GSM network globally.
Verizon wireless and at&t
Sprint and Cricket are two known companies to have unlimited data usage for the iphone
i know for sure that att has the iPhone and i believe that Verizon is about to begin selling them.
In the continental US AT&T has sole exclusivity as the carrier for iPhone through 2011.
AT&T, Verizon, and Sprint.
an iPhone can not be used to provide internet access to the PS2
No other phone companies other than at&t will have the iPhone but you can buy the iPhone from at&t with the no commitment price, and then take that phone to an other carrier (like Verizon or tmobile) The no commitment price is a lot more expensive though, and there is many phones available that are similar to the iPhone, so be careful of what you buy.
Because outlook is made by Microsoft which is a competing company of apple.the iPhone is made by apple and has a specific block for programs and updates from other companies unless you jailbreak your iPhone. Try looking up jailbreaking an iPhone.
provide some good names of galvanized companies
Yes. An iphone 5 charger case from amazon like morphe and other companies can fit in an ipod touch 5g.
The iPhone Software Development Kit (SDK) was first released for developers on March 6, 2008.