No increase in commuting where I live, as far as I can tell. I've been biking to work nearly 4 years now and I rarely ever see other bike commuters. Every now and then I will see another cyclist but they either don't stick with it or ride different times and/or routes than me. We don't have a system of bike lanes or paths oriented toward commuters. My city does have a huge system of greenbelt paths, but they are aimed at recreation and don't go anywhere useful for riding to work or shopping.

What is surprising to me is that recreational cycling is very big around here and has seen a huge increase. Group pickup rides on weekends often attract 50 or more cyclists. But few if any of these weekend warriors seem to be willing to take the next step (or pedal).