Linux users really love Google Picasa even though it's not a native Linux application (unpack the .deb and you'll notice some wine.exe and other such files). Reading the comments from our "best linux photo manager / organizer" post, it seems face recognition is the feature that attracts people the most to Picasa.

DigiKam 1.0 was recently released and it features lot of new features and improvements (see the full list, here).

digiKam is an advanced digital photo management application for Linux, Windows, and Mac-OSX.

DigiKam 1.0 final is currently only available in source files or pre-compiled with KDE-Windows installer, but there are some .deb files available for Ubuntu Karmic you can install if you can't wait to take the new DigiKam 1.0 final for a spin (that's right, the final DigiKam 1.0 isn't even available yet in the Kubuntu Beta PPA):