I'm off to the US of A next month and was looking at picking up a local SIM.
Looking at AT&T, they seem to have a pretty reasonable deal of US$65 for Unlimited data (slowed down after 22GB).
What isn't made immediately clear is whether the speed limit of 3mbps applies to ALL data on the Unlimited plan, or it's what they limit to only after the 22GB has been used, otherwise full speed.
ref: https://www.att.com/prepaid/plans.html
How would you interpret this? If its to ALL data, including the first 22GB, then I will look at TMobile or something else.
Something tells me it's only limited to 3mbps http/1.5mbps video after 22GB, but just wanted to be sure.