Under
http://dagobah.princessleia.com/Xubuntu/12.10/Photos%20and%20cameras ,
the guide suggests using gthumb to import photos. The guide has been
written well, and gthumb works fine for mass-storage cameras, but I've
found that applications using gphoto2 only work for PTP class cameras,
such as gtkam. Perhaps a note should be added about this.