Sadly nowadays big corporations seem more intent on suing each other rather than exploring mutually beneficial collaborations. :rolleyes:
Google is pretty good that way but I can't see Apple letting any of their competitors use any of their intellectual property.
Given the method that has been used though (through reverse engineering) it's possible that this doesn't require Apple consent.
If that's the case though then it would be down to Google to decide as to whether they'd support it through their Play Store.