updated 01:34 pm EDT, Mon July 22, 2013
Addresses gaps left by original tiers
AT&T is expanding its Mobile Share data plans with two new tiers starting July 26th, the US carrier has announced. A 300MB tier will cost $20 per month, while a 2GB option will cost $50. The prices per smartphone for each plan are $50 and $45, respectively.
Mobile Share lets AT&T subscribers split the same data pool among several different devices, instead of paying for separate subscriptions. Plans previously extended up to 50GB, but the carrier lacked any options between or below 1GB and 4GB. Each subscription must include at least one smartphone, although phones also get unlimited voice and texting.