Xfinity Mobile, Comcast's wireless phone service, goes live

Early last month, Comcast officially introduced its mobile phone service that had long been rumored: Xfinity Mobile. The service is now open to customers who want to sign up, giving Comcast faithfuls a new potential way to get mobile phone service at a decent $45/month rate. There are some ‘catches,’ though, in a sense: you must be an Xfinity Internet …