LightZone « lightcrafts - stumbled upon it by chance, nice image editing software for RAW photos. Written in Java, therefore available on all platforms (Windows, MacOS X and Linux). No usable software for managing the image archive included - this has to be realized externally - but images are edited non-destructively, results saved in JPG files (including the stack of applied tools). All in all, it looks quite nice and could be an alternative to LightRoom if I find a usable image archive software for Linux (at least a more usable one than I have so far - unfortunately, Picasa does not support Panasonic-RAW in the Linux version).