We've been waiting for this announcement so long that, even with all the foreshadowing in the last couple of weeks, we almost can't believe it's happened. PAYG will officially be valid on national rail services - and Thames Clippers, wahey! - from 2nd January.
TfL are even bringing out a new map called "The World of Oyster" to celebrate, which also sees the return of the Thames, rolling out to stations in the new year. It's not replacing the traditional tube map yet, but those of us who are fed up of near-tube-dwellers saying "Where? You live where? Never heard of it" when you mention your home in Hornsey / Hither Green / Harold Wood might just start a stealth campaign to make these places as familiar as Highgate / Hendon / Harrow and Wealdstone.
Transport Secretary Lord Adonis said "if we are to encourage more people onto public transport we must make it as easy and convenient to use as possible", though Caroline Pidgeon took care to point out the insanity of the OEP system that caused much discussion round these parts. And there looks like there's even more confusion ahoy, with both the Standard and the BBC saying TOCs will still be able to set their own fares, which is slightly bonkers. But at least it's all a step in the right direction.