Ok, some of this sounds good. Store your docs and your pdfs and you can now read them online. Google can even let you search inside your own files, and even monetize it by showing you ads based on file contents.

Dropbox is not a success, in my mind, because it is cloud storage. It is a success because of shell integration. No fumbling around with browsers to upload or download files. It is seamless, I can open docs from dropbox with notepad for god's sake.

I would like to see google offer shell integration as well. Drop all your word docs in the folder and they are now in Google docs. Make some edits with word and it syncs to Google. Turn on your computer and it pulls down the latest version from Google doc.

If Google won't do it, someone else should. Hack together a windows shell extension, with git as a backend and an online doc editor.