Gnome1394 allows you to access the IEEE 1394 bus (FireWire, iLink) from GNOME.
It needs the IEEE1394 kernel patch and the library for raw access to the bus. All can be found on the project's home page. Note that at the current stage of development, access is very limited and only simple bus transactions are possible. It isn't very useful at the moment; the target audiences are developers and people who want to see that Linux is starting to support IEEE1394.