The new Microsoft Office update for iOS now allows use other cloud services.
Users upgrading their Office application for iOS, from now will be able to use cloud services like Box and iCloud and can open, edit and save documents they have in their spaces in these services. These services are in addition to Dropbox already added to Office last November.
In the post of the announcement on the blog of Microsoft Office, also commented that now other cloud services can integrate online Office applications, allowing them to open, view and edit documents hosted on its servers in any browser.
Finally Microsoft indicates that soon other cloud services would be integrated in universal applications for Windows Office 10 and Office apps on Android.