Londoners enjoyed not only "the greatest show on earth" this summer, but also free tube WiFi courtesy of Virgin Media. It's due to remain complimentary for what's left of the year, but if you're with EE, you'll be able to continue updating your status from subterranean platforms in 2013. The UK's first 4G provider has struck a deal to hook its customers up to Virgin's underground WiFi infrastructure, although the announcement seems to