A recent California law that requires public companies with their primary executive offices in California to have a minimum number of female directors, has been analyzed by nationally-prominent corporate law expert Prof. Stephen Bainbridge, who addresses several aspects of this new legislation–including how it fares when one applies the reasoning in several seminal Delaware court decisions on the internal affairs doctrine, for example.
I predict ample litigation around this new law, and the above-linked article would be an excellent starting point for anyone who needs to prepare a brief or a memo on the topic.