Shigeru Miyamoto wasn't the only one that joint Apple on stage to make an announcement today, Niantic Labs' CEO John Hanke did the same.

Pokémon Go has been a huge success so far, with over 500 million downloads and 4.6 billion kilometers walked.  Now it is coming to the Apple Watch as a companion app.

The app will show you how far you need to walk in order to hatch an egg and your walk will be counted as a workout.  While walking you'll also receive notifications of what Pokémon, Pokéstops and gyms are nearby.  The demo even featured a Pikachu (obviously) hatching on stage!

Mr Hanke also confirmed that the delayed Pokémon Go Plus that also alerts you to nearby Pokémon, albeit in a more low-tech way, will finally begin shipping later this month.