Virgin Mobile USA will roll out a new unlimited wireless calling plan next month in a bid to undercut similar unlimited plans from the big four wireless carriers — AT&T, Sprint, T-Mobile and Verizon. In a flurry of activity earlier this year, the big four in close succession announced unlimited voice calling plans for just under a $100 a month. Virgin Mobile will offer its similar “Totally Unlimited” calling plan for $79.99, which it positions as the “first unlimited nationwide calling plan without roaming charges or an annual contract that can be purchased by cash or credit.”
