There's no "good deal" here--
AT&T unveils new insanely expensive shared data plans - SlashGear: " . . . In the past, the biggest plan you could opt for had 20 GB of data to share between devices and users. AT&T has unveiled plans with even more data, with one offering more than twice as much. The new AT&Tdata plans offer allotments of 30 GB, 40 GB, and 50 GB. As you can imagine, these shared data plans are incredibly expensive. The 30 GB plan will cost you $300 per month. The 40 GB plan will set you back $400 per month, and the 50 GB option will cost you $500 per month. These incredibly expensive data plans do include unlimited talk and text messaging. On top of those whopping monthly charges for the giant chunks of data, you will also have to pony up additional monthly charges for each device you add to the plan . . ."
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