Transport for London says that the contactless card payment scheme will be rolled out on the Docklands Light Railway, London Overground, tube and trams by the end of 2013.
Discussions are also underway with London's train companies about accepting contactless payment cards on National Rail services where Oyster is currently accepted.
More top news
A 73-year-old great grandmother shot in her home has been speaking to ITV News London about the incident.
A woman who radically overhauled her diet to cure a rare disorder she suffers from has become the fastest selling food author ever.
Singer, guitarist and pianist Joan Armatrading will be in London next month for the climax of her final world tour.