AT&T to Offer Free Unlimited Mobile to Mobile Calling to Any Carrier

Tomorrow, AT&T will offer free mobile to any mobile calling with an unlimited texting plan. That means any call you make to T-Mobile, Sprint, and all your friends who will ditch AT&T for Verizon should be free. Specific details will come out tomorrow (which coincidentally is Verizon iPhone Day). [AT&T via BGR] » 2/09/11 12:37pm 2/09/11 12:37pm