+1.
Here are some more questions that I would be interested in having answers to:
-- What do women who are presently editing find most demotivating about contributing to Wikipedia?
-- Have they ever thought of throwing in the towel, and what were the reasons?
-- Based on past experience, what aspect of Wikimedia/Wikipedia culture would be most likely to cause them to stop editing at some point in the future?
-- What change, if any, would they welcome most to feel good about contributing?
You'd need a male control group for comparative work, to establish whether any of the answers are gender-specific.
Crossposted to gendergap list. (Maybe someone with access to the research mailing list might like to crosspost this thread there as well.)
Andreas