T-Mobile launches prepaid GoSmart Mobile service starting at $30 a month, promises 'FreeDUM'

It's nothing we didn't see coming toward the end of last year, but T-Mobile's finally ready to make its GoSmart Mobile prepaid service officially official. As outlined during its trials, the service is offering up plans starting at $30 a month for unlimited talk and text. An extra $5 a month'll get you unlimited talk, text and web, and if you jump up to a full $45 a month, you can add 3G to the list. T-Mob's promising a service free of hidden fees and caps, or as the company puts it "No DUM caps...