I've seen an increase. There were times when I felt I was the only commuter in my area. It is actually normal for me to see at least two other people riding as well now.
My bike is no longer the only one locked up in the racks now which is good. There is nothing more worrisome than a bike left alone. I was afraid I would come out one day to find it is missing. Now I come out and find the other bikes that were there when I arrived missing.