Verizon unveiled the highly anticipated shared data plans today. The new plans–called Share Everything–include unlimited voice and text along with a pool of data to be shared between up to 10 devices. At face value it’s a welcome change, but let’s break down the math a bit and see how it works out in the real world.

With the Share Everything plans you pay a fee for each device, and then add on a pool of data to share. Smartphones are $ 40 each, feature phones are $ 30 each, and you can add a tablet for only $ 10. Sharing 1GB of data costs $ 50 per month. Verizon will also offer 2GB for $ 60; 4 GB for $ 70; 6 GB for $ 80; 8 GB for $ 90 and 10 GB for $ 100. Beyond 10GB it will cost $ 10 for each additional 2GB of data.