I am a true lover of the pay-as-you-go bicycle in the city. I tried it in Paris 3 times this year and everytime it was worth the queue to get a bicycle and run away. Either a day with strike in Paris (no.. never happens... ;-) or just because I 'd rather walk than taking the tube but realised walking would take me there in a long time.
This blog is giving us reports on the world of city bicycle renting, you can even see a map of all the cities that have already got this system. Did you know that Beijing is the first Asia city to have adopted a city-bike to try to get back to riding like they used to ?