The Italian Wikipedia is the first project where people who use search will find results added from Wikidata. As you may know, Wikidata knows has more items with a label in a language than a Wikipedia has articles. With the Wikidata based functionality people will gain several functionalities that are new to them
- a link to Commons categories for a subject
- a link to Wikipedia articles in other languages
- a link to the Wikidata item
- visualisation care of the "Reasonator"
When there are multiple items found in the search request, disambiguation will be provided based on the statements available on the items. Obviously as more labels are available in a language for statements, the experience will improve.
This is a really exciting new development and I want to thank Magnus and Nemo for making it possible. I hope and expect that many Wikipedias will follow the example of the Italian Wikipedia. Particularly the smaller Wikipedias have much to gain from this new functionality.