Apparently there are several people reporting that they have experienced signifigent problems with the WWAN 1.0 Support update that was released last week. The site that was originally dugg is completely dead at the time I write this, but a digg commentor explained the problem here:
Besides not working very well with N routers (besides the Airport Extreme), the new update breaks WPA2. So yes, it is quite a large problem if you like security or faster networking.
Until we get more information about this, I think it’s best to avoid the update if you haven’t installed it yet. You can read through the comments on the digg post and see, some (but certainly not all) of the users are having some serious problems with this update.
Expect a fix from Apple soon.
