You're right, ccLoop sounds a lot like what I'm suggesting. Your Evernote / Sharepoint analogies are quite good, too.
Having read reasoning behind the ccLoop pivot though, I was wondering how exactly to sell such a tool to enterprises. Michael Wolfe makes a good point when he says that with B2B software you must sell:
a.) Solutions that generate revenue.
b.) Solutions that save money.
c.) Solutions that are required for purposes of governance, compliance, security, and reporting.
While I certainly see how an "Evernote for your Emails" could streamline processes and alleviate some pain what you're selling essentially is a soft value proposition, i.e. your tool might simplify my work but how exactly does it save me money or generate revenue?
I don't want to appear overly critical but I'd even have a hard time selling this to a client of mine who clearly has exactly the problem your product could solve. Unless there's some hard, quantifiable benefit the client's highly unlikely to buy your product (unless you're IBM or Oracle but that's an entirely different matter).