Office for iOS adds Box, Citrix and Salesforce integration

Microsoft has opened up the back-end of its Office for iOS and Office Online apps to allow third-party cloud storage providers to integrate their services with the productivity suite.Box, Citrix and Salesforce are inaugural members of the Microsoft Cloud Storage Partner Program meaning Office for iPhone and iPad users can open, edit and save previously created documents to the respective cloud storage services right away with support for Office Online to follow.Apple's iCloud storage service was