*************. How does switching me to a shared data plan alleviate strain on the network? AT&T has experienced wild success with the iPhone in the form of large voice and data contracts. Now, they want to abuse that success on a technicality. As someone posted previously, it may not violate net neutrality technically, but definitely the spirit of it.
I see a few more palatable solutions.
1. Kick everyone off unlimited data. (Boo-hoo. You're getting throttled anyways.) Then everyone would be on a level playing field and let people decide how they want to use their data. If I blow through my cap in 1 day from lengthy FaceTime over cellular, then I'll just get hit with costly overage data charges. Everyone wins - I get to use MY data how I please, and AT&T gets paid, which is really all they want.
2. Data speed-based plans, instead of volume plans. Someone posted on this previously at length, but it's what the landline carriers are already doing. You could even have 3 tiers - Edge, 3G, and LTE. You could even limit FaceTime to LTE (even though we all know it works fine over 3G, and probably Edge).
I would love to see Rollover data. I like FaceTime, but I'm not switching to a shared data plan to get it.