Me le chiamo e me le canto da solo (o quasi )
Qui c'è questa applicazione, datata di un anno, offerta dalla stessa Google: Official Google Data APIs Blog: Easily upload your documents to Google Docs!
The application works on Windows PCs running the .NET Framework 2.0 or higher.
Download the Documents List Uploader.
Files can be uploaded to Google Docs either by enabling a right-click menu item or through drag-and-drop functionality. This makes it simple to browse through your local files and selectively upload the ones you want to edit, share, or publish using Google Docs.
Beh, la provo e vi dico...