If you live in a technophile city like Taipei, you'll have been enjoying underground 4G for a long time now, but in London the rule is that you have to bid adieu to your mobile connectivity when diving into a tunnel. The city's Mayor has been active in encouraging (forcing?) the major British carriers to install the necessary equipment to provide coverage on the Tube, and now we're hearing that ambition has stretched beyond the nation's borders as well. The Daily Telegraph reports that Vodafone, O2, Everything Everywhere, and Three from the UK along with Orange, SFR and Bouygues from France have agreed to share the cost of putting together a £20 million ($30.8m) project for making cellular coverage possible while traveling through the 31.4-mile Channel Tunnel between the two countries. The goal is to get things up and running by the Olympics in 2012, though we've no indication as to what speeds those wireless data transfers will reach. Still, having some bars is better than none, right?