Several tournaments including the main event, the GM invitational, take place in Biel, Switzerland, July 16 - 29, 2011! Official website. No ladies are playing in the GM invitational, so I won't be paying much attention. However, according to the calendar of events at GM Alexandra Kosteniuk's website, she will be playing in both the Biel Rapid (July 17th) and Biel Blitz (July 24th) chess championships. She is not listed amongst the players at the official website but perhaps the playing lists haven't been updated.
There are also several chess femmes playing in Master Tournament, the highest rated I saw was WGM Elisabeth Paehtz of Germany (2466).
No results posted yet - I'll keep an eye out for them.