We are loving the baby taxis or CNG (compressed natural gass), they are micro taxis, basically a 3 wheeled motorbike with a 2 seater cab at the back, all painted in green. They used to be open until the wife of the police force director was mugged, so now most of them have a door (caging). CNGs are perfect for small distances and weave in and out of the traffic barely scraping past obstacles and people. Green CNGs are for hire, and any other colour is a private CNG. I saw a pink one yesterday!
for a taste of a CNG ride minus the full volume of car horns and street smells see http://www.youtube.com/watch?v=YafQxzJfepo