AT&T' Limited Unlimited Plan, Will you Ditch It for 3GB Plan?

AT&T' Limited Unlimited Plan, Will you Ditch It for 3GB Plan? http://snapvoip.blogspot.com/

Looks like AT&T sending notices to heavy users (which seems to be users who use more than 2GB) of throttling of their data consumption. While throttling the bandwidth, which AT&T does not give any information on the cut off limit of data usage nor much information on throttled speed.
According to ask Maggie on CNet, AT&T does not want to answer either.
The 3GB plan is offered at the same price as the unlimited plan and may suit those who use more than 2GB of data a month.
Or you could seek another carrier, who is not so vague in their offerings of data plans. Perhaps Sprint?