Oh man -- this almost fits a perfectly for me. I just wish that reStructured text was supported, but I could live with markdown. Yeah, I'm old-school.

It would be awesome if this service supported dropbox and stored all files there -- using a simple directory structure. This would allow me to edit my files using VIM during the day, and I'd have a super easy search UI.

I currently keep daily notes on dropbox using rst files (one per day) -- so this would fit my workflow perfectly.