While all Linux blogs are talking about new Gimp 2.4, I’m very happy with Picasa.
Yes, I know they have different purposes but Picasa does everything I need with my photos. It is intuitive, powerful, extremely easy to use, fast and nice.
You may say F-Spot is the OSS equivalent but I couldn’t spend more than 15 minutes using it before giving up.
And did I mention they also provide a Linux version for Picasa ?