The confusion from all of this stems from the fact that for a while, Verizon was advertising an "unlimited" laptop data plan that was in fact capped to 5GB. The Attorney General in some state (probably New York) intervened and made them change their advertising to reflect the true nature of the cap.
Shortly thereafter, AT&T started capping their new Laptop Connect customers to 5GB per month while still charging them the same amount ($60/month) as their grandfathered unlimited Laptop Connect customers.
Note that these are all about
Laptop plans. Not smartphones or regular phones.
But people ignored that and began assuming that every "unlimited" plan actually had a 5GB cap to it.
This isn't the case though. If you are an on unlimited data plan, and your online account manager tells you it's unlimited, then it's unlimited. If there was a 5GB or 2GB cap, it will tell you this.
This is what a usage summary on AT&T looks like if your data plan is unlimited:
And what it looks like if you have a cap:
If you dig threw it AT&T has the right to charge you or terminate your serves if you are using excessive data or if you tether.
It's "through." And please stop spreading FUD.
Tethering and "excessive" data usage are two different matter altogether that shouldn't be confused. Yes, tethering isn't allowed under the T's and C's for unlimited plans and
IF you are caught, they could do something about it if they wanted to. But there has not been a single reported instance of AT&T coming down on an iPhone unlimited plan user for using a large amount of data
legitimately on their iPhones.
And people have definitely tried: there have been threads on other forums where people have streamed Pandora 24/7 because they had an axe to grind with AT&T and were under the false impression that this would somehow "get back" at AT&T. 7, 8 gigabytes later, nothing happened. At worst, they might've made data a little slower for other iPhone users unlucky enough to be on the same cell site, and they had an iPhone sitting around blaring music uselessly to no one, and they couldn't use it otherwise because it couldn't multitask at the time.