It was originally meant to end for everyone in September (edit: "end of summer"), if I remember rightly, but was extended.
You can register with these links for free WiFi after January 29th:
Virgin Media
http://customer.virginmedia.com/wifi...elftransition/
Everything Everywhere
https://tubewifi.ee.co.uk/index.php?vmcode=XGH-K56
Vodafone
http://www.vodafone.co.uk/shop/internet/wi-fi/index.htm
Or register for a pass here:
https://wifipass.virginmedia.com/w/R...urnUrl=%2fw%2f
Full list of stations here:
http://my.virginmedia.com/wifi/station-guide.html