Finally, some good news for Heathrow Terminal 5: a Wi-Fi hotspot the size of 50 football pitches has gone live at the troubled airport terminal.

The Terminal 5 Wi-Fi hotspot is T-Mobile's largest in the UK. It offers airport visitors wireless internet speeds of up to 8Mbps on their laptops, PDAs and smartphones. T-Mobile also runs smaller Wi-Fi hotspots at other Heathrow terminals.

Users of T-Mobile's own mobile broadband service will be able to access the network for free with High-Speed Uplink Packet Access, speeding upload times by up to five times. Other users will pay £5 for one hour or £10 for a day.

Ian Denchfield, head of commercial telecoms at airport operator BAA, said: "Seamless internet connectivity is an important part of our commitment to innovation and will form a key element in the future of travel."

Heathrow Terminal 5, which cost £4.3bn and operates only British Airways flights, opened in March to a range of IT system problems. Two months later, BA boss Willie Walsh blamed a message filter accidentally left on after software testing as the root of the widespread problems.

In July, it emerged that up to 1,000 bags were being delayed daily in the system at Terminal 5. BA said other interconnecting airlines were at fault for delivering the bags late.

Approximately 27 million passengers will travel through Terminal 5 each year, according to estimates.

Visit Broadband Advisor for the latest internet news, reviews, tips & tricks

Visit Business Advisor for the latest business IT news, reviews, tips and tricks - plus sign up for our unique and FREE business IT newsletter