I've just read about Guy Laliberté's Poetic Social Mission for the One Drop Foundation. The seventh private space traveller is doing more with his once-in-a-lifetime opportunity than just enjoying himself - he plans to stage a worldwide music and arts event involving himself aboard the ISS, to draw attention to the worldwide need for fair and equitable access to water.
The guest list sounds brilliant (Peter Gabriel, U2, Shakira and many others) - the downside is that the two-hour spectacular is due to kick off at 8pm Eastern on October 9th, which makes it about 1am in our time zone. I think it's being broadcast via YouTube, so perhaps we'll be able to watch it later on? Details about this are a bit sketchy at the moment - the site just says "broadcast right here".