AT&T Launches New 10GB Data, Unlimited Talk And Text Family Share Plans
Prices start $130 for two lines; five lines will run you a total of $175, and you can add more lines beyond that for $15 per month per line. The plan also works for small business that have up to 10 lines. For a limited time, both new and existing customers can get a $100 bill credit towards any new line added.

If you need a clearer example of the mindset of mobile service providers these days, this paragraph in AT&T’s press release tells you everything you need to know:
Today, Verizon charges $260 monthly for a comparable plan that’s now $160 from AT&T. A family with four smartphones with unlimited talk and text, and a shared 10GB bucket of data, could switch to AT&T from Verizon and save $100 a month. In addition to the big monthly savings, the family in this example would get a $400 bill credit for the four smartphone lines of service added.

AT&T isn't just saying that it offers deal than the competition; it's breaking down the price structure and pleading with you to switch. The cost of mobile service plans is high, sometimes more akin to a car payment than a cell phone bill, so it’s refreshing to see the prices get pushed further down. Competition is always great for consumers.