AP
So says Adam Mosseri, Facebook director of products in an interview on Bloomberg West.
Mosseri emphasized that Facebook is merely talking to Apple and Microsoft so far. Nothing had been finalized.
“We’ve shown them what we’ve built and we’re just in an ongoing conversation,” Mosseri said in the interview.
It's currently available through the Google Play app store but only for a few top-tier Android phones like the HTC One X and Samsung Galaxy S III. (An unapproved hack of the app can be used, too. This lets you to install Home on any Android phone.)
It's harder for Facebook to build a version of Home for the iPhone or for Windows Phone because those operating systems are closely guarded by their owners. Apple or Microsoft would have to consent. Google's Android, in contrast, is open source, making it easier for developers to do things like build an app that modifies something big like the home screen.
So even if Facebook is successful with these talks, the resulting app could be very different from the Android version of Home