Not quite. Both Google and Dropbox brought immense improvements to the state of the art of both of their respective niches.
I have a hard time at the moment trying to figure out what benefits this has over Etherpad clones or Google Docs. I'm sure there's a use case that they're trying to tackle, but it's not obvious to me.
In the article, it's mentioned that they are building a platform whereby native apps can add collaboration features, and they mention Photoshop as a possibility for that. That would be huge.
I have a hard time at the moment trying to figure out what benefits this has over Etherpad clones or Google Docs. I'm sure there's a use case that they're trying to tackle, but it's not obvious to me.