Well it appears that suspicious partners will be able to spy on their other halves again, as thanks to Martin, I learnt that once again if you have an Oystercard you can see 8 weeks of your journey history online. That's if you use pay as you go or auto top up.
You may remember that in February the national press had reported the more irregular use and strangely enough around the same time, Transport for London withdrew the facility to view your account online.
The website used to say "At present it is not possible to view your Pre Pay journey history on our website. You can check your Pre Pay journey history at the multifare ticket machines at Tube stations or you can get a printout from the Tube station ticket office. Both of these options will give you details of the last eight journeys made."
You could also get a printed statement if you sent your password to TfL by post.
Maybe they've now worked out a more foolproof way for Pre-Pay data to only be accessible to the Oystercard holder (although bear in mind that lots of partners know each others passwords - or at least could make a good guess at them). But hey, it is a handy feature and it seems weird to take it away just because some people were using it to spy on others.
Anyway, enjoy it while it lasts, as you might find the feature mysteriously disappears again.