Hi,

I haven't seen this mentioned in the context of Wikidata yet, so here:

The latest beta version of the Wikipedia app for iOS (iPhone, iPad, iPod) shows descriptions from Wikidata as summaries in the search results.

If you have an iOS device and want to see it in action, see the instructions here:
https://www.mediawiki.org/wiki/Wikimedia_Apps#Stay_on_the_Cutting_Edge