Along with the announcement about the availability of Office for iPad, Microsoft quietly released free Office Mobile apps for iOS and Android devices. Previously, you require Office 365 subscription to use Office Mobile apps on these platforms, now Microsoft is offering them under freemium model. You can download the apps for free and use it for viewing and presenting. If you want to create or edit the documents, you need to have a Office 365 subscription.
Just like Office Mobile for Windows Phone, we are making Office Mobile for iPhone and Android phones free for everyone. With Office Mobile, you have the ability to view and edit your Office content on the go.