After working in the mobile industry for 5 years I learned a few things. One thing I learned is that people want their plans to be simple, easy to understand and provided them the most bang for their buck. As the mobile sphere rotates and evolves, so does what the carriers can offer and do. Starting out with  high-priced unlimited plans in the beginning, thinking that only corporate users would need such large amounts of service. Then bringing those costs down to something more affordable for ‘normal’ people. Since then, most carriers have killed off truly unlimited plans and adopting smaller plans with data caps and throttling. This is mostly just a U.S. based tactic. Overseas they are doing things a bit different.
In the UK, T-Mobile has just announced 4 new plans that they are calling the full monty. Giving you one simple price to pay for unlimited everything, data, calls, text and tethering. Making your life super easy. Each of the four plans offer mainly the same thing, but are broken down by device type.
The plans are scheduled to go live beginning February 1st for those of you that might be interested.
Source: Tmo UK via AndroidPolice