A service for Mac OS X. Install by double clicking the disk image (the .dmg file you download) and dragging the CalendarCreator.service file on the newly mounted drive to ~/Library/Services/ or /Library/Services/. Once you log out and log back in you will be able to add any selected text as an event in iCal in a new calendar called "CalendarCreator". You can read the ReadMe if you really want to to find out just how it all works and for further help installing the service.