The feature is said to be coming at the GSM carrier’s discretion in an upcoming iOS 4.3 update. The feature allows the iPhone to turn into a mobile hotspot that can provide a wireless internet connection to up to five devices simultaneously.
We received this information from a reliable source within the local telecommunications industry, our 100% correct information previously unannounced firmware versions provided. The feature, provided that your operator supports tethering. Besides the option for USB and Bluetooth connection, will also have the option of a 3G hot spot in the personal settings menu.
We are told the OS version will be 8F5148b, the baseband will be 04.08.00, and technical acceptance is planned for March.
So we hope you will not update your iPhone4 to iOS4.3 when it will be released and not even by mistake. Just stay away from it.