Paul Rouget has a long article in french about Apollo and XULRunner ; it's too long and I won't translate it here, like I did with Laurent's article. But it's a must-read if you're involved in Mozilla, and in particular if you work on or with XULRunner. I hope Paul will have time to translate it but in the meantime, here's a link to the babelfish translation of his article if you can't read french. The translation is bad, but you'll get the big image anyway.