Apple has released a new iPhone OS beta 4 (beta 4), which is currently available for those with an Apple iPhone Developer Program account.
The big news here is that the iPhone OS 4 beta 4 comes with an option that enables users to install Internet on immobilization of AT & T network – this was discovered by a MacRumors forum member .
Of course, AT & T does not allow iPhone users to use effectively freezing (despite having promised this feature long ago), but would much sense if the company was to enable the once Apple launches the new iPhone 4G / H – this could happen as early as next month.

To get more information about AT & T iPhone tethering is presented, you can get the latest iPhone OS beta through Apple website – as mentioned above, be an Apple iPhone Developer Program to download the SDK account .





