iPhone OS. No seriously it's actually called iPhone OS.
The OS 8 is for the iPhone 4. The iPhone 4 is a really popular phone.
The iPhone, along with the iPod Touch and iPad, run iOS, previously called iPhone OS.
The region format on iPhone is used to delete and factory reset your iPhone. This is usually done when your iPhone becomes slow. This option is available on the setting tab of your iPhone.
The iPhone OS 4.0 will be available to iPhone and iPod Touch owners for download through iTunes during the summer of 2010.
Yes.
iPhone apps work on iOS devices (iPhone, iPad or iPod Touch) they will not work on a Mac running Mac OS X 10.7 (Lion) or any other Mac OS X version
the new OS 4which got released recently this year
If you want to format it with out using iTunes then go to setting on your iPhone then to general then to reset then select erase all content and settings it should ask you to enter your pass code then it will make sure with you that you really want to format your iPhone to its original state and after a few minutes your done. Here is a way about how to format iPhone. Settings--->General--->Reset--->Erase All Content and Settings and wait for the iPhone to format itself. Before format your iPhone, you'd better backup your data.
The installation CD of the new OS should be bootable. Boot the computer with the disc in, and choose to install the OS. It should give you an option to clean install, and format.
all the features that are mentioned is available with the iPhone 3gs
iphone is one of the product of the apple company. its brifly defined as os used in this are i os .