New features in GtkFileChooser include the following:
Ability to select URIs rather than just local files. You
must use a GtkFileSystem implementation that supports this,
for example the gnome-vfs backend.
Present a list of application-specific shortcut folders.
For example, a paint program may want to add a shortcut for
its /usr/share/paint_program/Clipart
folder.
Define custom filters so that not all the files in a folder
are listed. For example, you could filter out backup files,
or show only image files.
To see how to use these features, please consult the GtkFileChooser
reference documentation.