Whether you believe in Lyft or not, it's amazing that in just one year transportation in SF is a solved problem. And soon it will be in many other cities as well. I remember waiting on the phone for Yellow Cab to confirm my taxi and it would sometimes take hours. I would have to plan my night ahead. Now with Uber, Sidecar, Lyft, and Flywheel I can be out the door in 5 minutes.