>What's the frequency of buses in your area? Apart from NYC, I still haven't seen a schedule which would keep them going more often than one per hour - maybe two at rush hour.

I think they're pretty frequent in other big cities, too. Depends on the route. Here's the schedule for a bus that runs the down one of Philadelphia's major streets:

http://www.septa.com/service/sched/c_wk.html

Less than 10 minutes apart at rush hour, up to about 15 in off hours.

Tamar