BT has started trials to offer Wi-Fi on London Underground with connectivity being offered at Charing Cross underground station at the ticket hall and for both the Bakerloo and Northern line platforms.
The tests, which will last six months and start on the 1st of November, are several steps away from a full blown wireless communication mesh across London Underground.
Don't expect to make mobile phone calls though for the time being.
Users won't be able to use internet whilst in tunnels but BT broadband customers and possibly those who have BT Openzone as part of their package will be able to test it.
All mobile phone owners with Wi-Fi connectivity, laptop or tablets will be able to read travel information for free but will be further restricted.
Boris Johnson, the London Mayor, has put his weight behind the campaign to transform London into a Wi-Fi hotspot before the 2012 London Olympics.
With more than half of London's councils having already agreed to help, lamp posts, bus stops and any other public amenities may be used to achieve this goal.
Kulveer Ranger, the mayor’s transport adviser, said that "An ever growing commuter populace has been clamouring to be able to check their e-mails and browse the net whilst on the go."