Hi Jennifer,
How can you still be in development and in the same time be "punished" for not having a mobile version?
To answer your question - Abercrombie is doing something similar as your client is doing. On the desktop version they have 5 languages - the mobile version is only English. If you search on Google.de (desktop) - you get the German version. If you search Google.de on mobile - the titles in the search results are German - however the site which is displayed when you click on the links is the one that is optimised for mobile (= English version)
I guess this will be similar in your case - desktop searches will go to the translated version - the mobile searches will go to the mobile version (even if it's not in the language of the searcher).
Dirk