Key Takeaways T debuts 55+ plans at $40 for one line or $35 each for two, with broadband bundles at $99/month. New plans feature 10 GB hotspot data, ActiveArmor security and the AT&T Guarantee for reliability. T's pricing undercuts T-Mobile and Verizon, targeting simplicity and better value for senior customers.AT&T, Inc. (T) recently announced the launch of new wireless plans with enticing features tailored for people aged 55 and above. By opting for the plan, customers can get one line for $40/month or ...