MOUNTAIN VIEW, CALIFORNIA—Google is committed to bringing its voice command system, the Google Assistant, to every possible computing interface. Today it exists on Android phones and tablets, Android Wear smartwatches, Google Home, and is soon coming to Android TV and Android Auto. There's also an SDK for hardware device makers, allowing anyone to build a Google Assistant box. The next great frontier for the Google Assistant? The iPhone.

Today, Google announced the Assistant is coming to iOS devices. Users will be able to open up the Google App, press the voice button, and speak to the Assistant. It's a standalone app, available here

This announcement comes with a lot of hype attached to it, but as we've been saying since the Assistant's launch, there isn't a huge difference in functionality between the old Google voice command system and the Google Assistant. What you mainly get is a new presentation with a more "humanized" response system that tells jokes and plays games.

It's most likely that the Assistant on iOS will be more limited than it is on Android. You probably won't get the "Always on" hotword system that you get on Android phones, which allows you to just say "OK Google" even if the screen is off. The Assistant on iOS is most likely just an app. The hotword will still work, but you'll have to have the Google app open. That's similar to how the "Ok Google" trigger works on the Google app for iPhone today, but with Assistant on iOS you'll get different functionality.

The 2017 Google I/O keynote is currently in progress, and we'll add more information to this article as it becomes available. For the most up-to-date details, follow the event in our liveblog.