Like on chrome OS (which I've never used btw) it's meant to be all about the cloud, how would you transport files between different web apps.
Eg I draw a flowchart in Creately, on a normal desktop I'd have to download it as an image file, and then upload it to Google docs so I could embed the image on a word document. But on a cloud based OS, how can you download it to the local computer, which you're not meant to be able to do as that defeats the point of the cloud a bit?
Why hasn't anyone come up with a common protocol to enable webapp <> webapp communication?