I'd love to see Google Doc's revision history applied here so I don't have to worry so much about losing my work.
As a coder who does 3d modeling, I've always been irked by the lack of version control in the modeling world (Airplane_013a.mel - what was in this file?). Git worked ok and github is doing some interesting stuff with STL file previews but it's still very disruptive to the creative flow. Again I'm super impressed and this is just a suggestion that might bring us 3d modelers out of the dark ages of file management.