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.
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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?
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.