So with the new plans from AT&T on data and tethering it leaves me to be curious on how this works. I am very upset with the company just trying to gain more money being the greedy company that it is which will lead to it's downfall, but until they I need help understanding this. How is data calculated? Does data count if you're on a wi-fi network or just on the 3g / 4g / Edge? With tethering and a limit of 2gb how much browsing of the web, uploading e-mail and sending e-mails off can you actually do and for how long before you run out.