I'm in the middle of Bikenomics. I really like it. It seems to be an extrapolation of the money savings that being car-free as an individual to the state and federal levels; not only is it cheaper for me to not have to own a car, it's cheaper for the government to not have to maintain the infrastructure for me to need one.
As far as modality increases, I have to agree with Roody. An increase from .6% to 1% is pretty good. I think the issues regarding Portland are too mired and would take over this thread, but I will say that I'd be pretty happy with a 6% biking modality in the US. If that's where social norms, or logistic requirements at the family level restrict it, then so be it.