In case you haven't noticed, more free open source image viewers are able to edit metadata lately. With this release gThumb, a GNOME image viewer, joins that very club.

Changes in this new version are:

• refactoring of source code for better maintainability and extendability;
• importing and exporting from/to Picasa WebAlbums, Facebook, PhotoBucket, Flickr;
• GNOME keyring is used for storing passwords;
• IPTC/XMP metadata fields can be edited now;
• audio and video files can be played finally (think about all the DSLRs and point-and-shoots that can record video files and audio comments);
• improved filtering and sorting of image files;
• more keyboard shortcuts;
• other, less significant changes;
• bugfixes.

You can download source code.

More on this topic:

• Shotwell 0.9.2 released with even more fixes
• Shotwell 0.9.0 photo collections manager released with many improvements
• Shotwell 0.8.1 released with fixes and video importing
• Shotwell gets rating and importing from F-Spot
• digiKam tips and tricks e-book is available