Sources: John Giannandrea's team built a next-gen search engine, "Pegasus", for Apple's own apps, used in Spotlight and Siri, and coming soon to the App Store (Mark Gurman/Bloomberg)

Mark Gurman / Bloomberg:

Sources: John Giannandrea’s workforce constructed a next-gen search engine, “Pegasus”, for Apple’s personal apps, utilized in Highlight and Siri, and coming quickly to the App Retailer  —  Apple has the wherewithal to launch its personal search engine, a alternative for Google.  And Microsoft even approached the corporate about serving to make that occur.