If you’re an iPhone developer with access to a paid developer account with Apple, you can upgrade your iPhone to the latest beta 4 release from Apple’s official developer site.

This latest beta release seems to have got the long overdue feature, that is Internet Tethering. This feature was actually introduced in iPhone OS 3 last year but was never served by AT&T to their customers. According to experts, it’s because AT&T’s network is not capable of handling huge data traffic. Recently, AT&T announced that they’ve updated their network to reach out to many users. And so, the iPhone OS 4 beta 4 release has a sign of it.

Now, iPhone OS 4 Beta 4 allows users to setup a new tethering account either by calling or visiting their site. This clearly shows that, AT&T has taken an action to serve their customers.

As this is just a beta release, the look and feel of the new tethering set up wizard might vary with final release.