Yeah, there were several women playing at BWII. The most I've seen at a single game. Then again, BWII was the largest game I've been to, so take that for what you will.
There were a few girls playing at Op Broadsword in Picton a couple of weeks back (about 3-4, I think), and I believe there were only 60-ish players in attendance. So proportionally, that may have been the highest female turnout I've seen to date at any game.