Microsoft pushes *Box further into the (optional) feature side of the product ... feature continuum
"Business users who rely on cloud storage providers like Dropbox and Box now have some improved tools in their collaboration arsenal, thanks to a set of integrations that Microsoft announced Wednesday.Box, Dropbox users can now edit Office documents together in real time | PCWorld
Starting Wednesday, Office Online users can work in real time on documents, spreadsheets and presentations shared inside Box, Dropbox, Citrix ShareFile and Egnyte. That means those folks who don't use Microsoft's systems to store their files will still be able to use the Office web apps to work together on the same file all at once.
The real-time, co-authoring feature was already available for people who used Microsoft OneDrive and SharePoint."