Multilingual Discovery in Europeana
Multilingual Information Access is not difficult, just very expensive. Not development cost, but maintenance cost are the real bottleneck. Multilingual Information Access is all about resources and little about technology. Be extremely explicit in what you are going to offer and be certain that the user really wants it, i.e. user-needs should drive business requirements. User Interface and Interaction Design is more important than the number of features you offer.