AT&T has made a shift in its highly unpopular FaceTime over cellular policies today. Previously, it would allow the use of FaceTime only on Mobile Share plans, now it will allow any LTE device customers (aka those with an iPhone 5 and LTE iPads) on a tiered data plan to use FaceTime over cellular.

That still leaves 3G devices out of the mix. However, there are far fewer LTE devices being used than 3G and I don’t think AT&T’s network could handle all the traffic if they opened it up completely.