With them working so much on building up their ad business, having a search engine and switching the iOS default search to it might make up for the loss in Goog

With them working so much on building up their ad business, having a search engine and switching the iOS default search to it might make up for the loss in Google money they get right now. Just like with Google Maps / Apple Maps it doesn't seem very Apple-like to depend on a partner this heavily for such a core feature.