Maybe it's stupid but i don't tend to feel i need to use a hard case so much for my DS, and tend to use just a Madcatz or some other random third party soft case. Having said that i was intending on getting a Logitech Playgear pocket for my DS too.....although they may not do those for the XL just yet.
Aren't you in France? Anyway, when you've got the internet to shop on nothing is impossible to get delivered.