"The Associated Press recently ran a story about how the mortgage crisis was leading the federal government and states to tighten licensing and other requirements for operating as a mortgage broker. Will this have a material effect in curbing the abuses that led to the crisis?"
No, because mortgage brokers played only an incidental role in the crisis. Blaming the crisis on brokers makes as little sense as blaming it on greed. Brokers have been with us for decades; greed has been with us forever; and neither suddenly caused a financial crisis.