[exit]

on the other hand i feel slightly locked in with google docs.

it doesn't seem to let me export my revision history, for example.

also, does it actually offer a download format such that:

"google docs" -> "download as" -> "upload to google docs"

returns you to exactly the same document?

[saturdaysaint]

Revision history would be nice, but I can't really agree about lock-in: you can very quickly/easily download all of your files (even allowing you to specify different formats for each file type). Switching to, say, Dropbox, would take a few minutes at most.