I will never understand this deluded sense of "I have grandfathered unlimited."
While your contract may say so, with throttling and caps in place, that means absolutely nothing anymore.
I disagree. What does unlimited mean to me? A guaranteed bill with no overage charges. Fixed costs can be very attractive to some people.
I never even come close to throttle territory, but it's nice to know that if I ever did, I wouldn't be charged more - especially if the cause was a rogue app, email problem etc.
Do I expect to be able to use Facetime? Yes - because I assume at the throttle mark of 3GB, the speed hit would render it useless - protecting AT&T and their network. That's fine with me.
Unlimited is like the 3GB metered plan, except instead of being charged for another GB, you're throttled to make everything slow way down.
I'm okay with that. I think all carriers should make that an option on
every plan.
Pick your data limit, and then choose whether to be charged for more, or throttled to speeds that basically hobble the phone but still let you get an iMessage or an email or two in and out. All data plans should let you choose what happens when you hit your limit.
And I agree with most people that data is data, and Facetime shouldn't be crippled on any plan.