If you have decided to not wait for AT&T to offer a legitimate tethering plan, and have enabled tethering on your iPhone dont get to cozy with it just yet.

Reports are out that the OS 3.1 beta 2 which was released to developers disabled the tethering hack.  So this means that when OS 3.1 is public, you will not be able to tether on AT&T's network without their permission.  We are hoping that AT&T will announce the tethering plans very soon.