Google, Facebook, and Dropbox were all quite different from their competitors from very early on.

I agree their business model could a the key to success, but from a user’s point of view, what is the reason that would make me want to pay for this new service? At a glance, it is quite similar to other note apps

Fair enough. I can appreciate that business model. Heck, I'm doing it myself. And I often tell my friends exactly what you've said - don't try and find something new just find something you can do much better (and then I point them to google, facebook, etc.).

My main reason for posting was because while I did understand why you'd start a business that did X better, I didn't necessarily think that would be enough to convince investors. I was wrong!