That T-Mobile unlimited voice plan for loyal customers just went live in San Francisco—if you’ve been with ‘em for 22+ months, you can talk ad infinitum for /month and cherry-pick your data plans.

The numbers look pretty nice, as BGR breaks it down: With voice, for unlimited texting and data, you have an all-can-consume package for a month (tack on another if you’ve got a BlackBerry). [Cellphone Signal via BGR]