Remember when unlimited calling plans were a sweet figment of our imagination? Times have changed for the better. Following the relatively recent introduction of its unlimited calling/messaging plan for individual users, T-Mobile has just announced a new unlimited calling option for Family Plan customers, available immediately. Under the new plan, up to 4 additional lines of unlimited calling/messaging can be added to an existing $99.99 unlimited. Each new line is $49.99. It’s not cheap, but if you have a family member or two that refuses to shut up, this might be the right option. Will the other carriers follow suit? Time reveals all, but we have a feeling that we might see some similar offerings from other carriers in the near future.