T-Mobile USA is upping the ante on the flat-rate plans by debuting a family-unlimited combo plan that offers unlimited nationwide calling, text, picture and instant messaging for a flat-rate. The first line costs $99.99 per month and each additional line costs $49.99 per month. Customers can add up to four additional lines. 

That means that a family of five would pay about $300 plus taxes and fees for an unlimited family plan from T-Mobile.

For more:
- see this press release

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