Please attend this potential compatibility problem between your elegant SCU plugin and the commonly used multi-language plugin WPML.
At my site http://www.tor.dk I have tried to build a two-laguage site using WPML as language switching device and your SCU as lay-out device. The result is up. At the front page I want to show an overview of recent posts in both English and Danish. The English frontpage (= tor.dk) does so (after installing at help-plugin called YD WPML Switcher to suppress laguage filtering), but the Danish front page (tor.dk/da/) refuses to show the English language posts.
I have asked WPML for support and their kind and careful review of the problem leads to the suspicion that there is a compatibility problem due top the use of shortcode for sorting posts inthe SCU.
They therefore invite you to take part in their compatibility work and contact them at http://wpml.org/documentation/theme-compatibility/go-global-program/
You can see my conversation with WPML suppport at the thread: http://wpml.org/forums/topic/two-languages-on-front-page/
Please do not hesitate in asking for more info. I hope you will help with this.