Some of us run multilingual sites/blogs via WPML.
Would be nice if WP Social Login supported WPML. Here's how I envision it:
1. Texts like "Connect with" could be translated into multiple languages and displayed as appropriate.
2. I could show social icons based on language, e.g. Mixi in Japanese, VKontakte in Russian, Twitter in English etc.
I asked WPML guys and they are happy to work with you...they say that typically it takes 1-2 days to have everything running and tested. To work with them, visit http://wpml.org/documentation/theme-compatibility/go-global-program/
I also found instructions by a 3rd party: http://www.foxrunsoftware.net/articles/wordpress/writing-plugin-localize-by-wpml/