|Google App status dashboard as of 15:40 GMT, 18 March 2013|
It would seem, if you had offline docs enabled and the docs sync'd you could happily carry on working - at least during this particular issue.
Here's how you enable offline Google Docs, it's pretty simple.
There are a lot of people on Twitter compaining about Google, complaining about cloud computing etc. they are understandably frustrated. Once this has all blown over I hope they remember that this type of issue is rare enough that the advatages of these services far outstrip the downsides, at least that's how I feel.
I hope everybody enables offline mode as soon as they can!