T-Mobile UK is to make its Web'n'walk mobile internet service "unlimited" giving punters access to an "all-you-can-eat" product for £7.50 a month. Due to be launched on 1 April, the unlimited Web'n'walk service will enable punters to browse the web, check out email and chat whenever they want.

But although the service is "unlimited" there are restrictions. Just like "unlimited" services for fixed-line net access, Web'n'walk is governed by a Fair Usage Policy to ensure that it is not abused. The cellco said it would monitor usage and investigate any spikes in demand.

A range of new handsets is also due to be made available from June, which should coincide with the launch of a massive multi-million summer ad campaign to plug the service. Just for background, last month T-Mobile was ticked off by the advertising watchdog for making exaggerated claims about web'n'walk.

In a statement, T-Mobile marketing director Phil Chapman said: "Our aim is to make web'n'walk the choice for any mobile phone user who wants to access the Internet on the move - whether it's to stay one step ahead of the news or to express themselves through moblogs."

Separately, research commissioned by T-Mobile found that being on the wrong tariff is costing Brits £132m every month. A nation-wide poll, conducted in conjunction with pollsters YouGov, revealed that the bills of eight in ten post-pay mobile phone punters vary by up to £20 from month to month.

And with six in ten admitting to exceeding their monthly text and call bundles, "a majority of Brits are failing to properly identify the best tariff for their needs, meaning we're wasting £132m every month", it said. ®

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