Are you a T-Mobile customer that frequently uses your phone, you know, as a phone? If so, you may be interested in a new plan add-on that's coming early next month. According to a document leaked to our amigos at TmoNews, T-Mobile will introduce a new feature dubbed "Unlimited Any Mobile" on April 4th that will offer unlimited calling to any domestic mobile number, regardless of carrier. The add-on will be priced at $10 per month and won't require any contract extension or rate plan change.

Obviously this new feature isn't going to appeal to everyone, but it sounds nice for folks that always seem to have their phone glued to their ear, especially since T-Mobile says that 80 percent of its calls are made to mobile numbers. The only bad news for you heavy talkers is that we're still nearly a month out from this add-on's expected introduction. Just go back to chatting and I bet the next three and a half weeks will fly right by. Any T-Mobile customers out there think that this Unlimited Any Mobile add-on could make its way onto your rate plan when it goes live?

Via TmoNews