Hi Chouby..
Ah yes I did not suggest you'd copy their code since that would be illegal, it was just a suggestion to look at how they've done it in the settingspanel :)
But I understand what you're saying about it being too complicated.. I suppose I'll stick with WPML when the customer really want different domains and otherwise I'll try out polylang.
While I have you here, might I ask if there's been any testing done on compatibility with Jigoshop E-commerce?