Two months ago, he spent an undisclosed but "very substantial" sum to bulldoze the 1, 000 square foot convenience store next to one of his stations and build a 4, 200 square foot grab-and-go food store with a coffee bar and three extra staffers.

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The new stations, including Camden Town, Clapham Common Notting Hill Gate and Russell Square, bring the total number of WiFi enabled stations to 92 with a further 28 stations due to come online in early 20131.

ENGADGET: PSA: Virgin Media extends London Underground WiFi again, aims for 120 stations by early 2013

Stations including Oxford Circus, Stratford, Liverpool Street, Leicester Square and King's Cross will be among the first to launch, with around 80 stations WiFi enabled by the end of July 1.

ENGADGET: Virgin Media names the first 80 tube stations to get WiFi hotspots