I reckon Evernote would be good bolt-on for a cloud collaboration company like Huddle or Box. The problem is that it's not worth $1bn to a company like that, so

I reckon Evernote would be good bolt-on for a cloud collaboration company like Huddle or Box. The problem is that it's not worth $1bn to a company like that, so any acquisition would result in a paper loss for those who invested at a $1bn valuation (not to mention the founders and employees who would probably get screwed by liquidation preferences).