[nemeth]

If the GDrive were similar to Dropbox, a copy of all files would be stored locally and be accessible without an Internet connection.

Google Docs offline access isn't even going to relaunch till later this year, so right now, storing files exclusively in Docs is a non-starter without an always-on Internet connection.

[TeMPOraL]

And that's the primary reason I don't even think of using Docs for anything except on-line surveys - I often work offline, and I need local files.