Apple’s Press Release on their Newsroom:

Today, Office 365 is available for the first time on the Mac App Store, making it easier than ever for Mac users to download Word, Outlook, Excel, PowerPoint, OneNote and the whole suite of Microsoft’s popular apps. Users can also purchase a subscription for Office 365 from within the apps, so they can get up and running instantly.

This was announced at WWDC in June last year. I wonder how much of a cut from the subscriptions is Apple getting from this.

My bet? Not a lot.