The Kickstarter is now on $23,923, with just $1,077 needed to fund the Mac OS and Linux versions. The Kickstarter ends in 9 hours, so anyone who has been waiting for the Mac OS or Linux version to be funded should back now...or at least camp on the page for the next eight and a half hours.
There is an interview, with the Other World Mapper team, on Tabletop Terrors, if you want to know more about the software.