One of the more interesting uses of this is to collect basic survey data. It supports mutlicheck boxes, radio buttons, drop down lists, text etc.; all it is missing is a scaling question.
Simply share a document as a form and using a simple Google-like interface, create your mini-survey, send as a link or email your contacts. Data collected is appended directly into your spreadsheet with a timestamp. Users can even fill out and submit data directly from their email!
This is only the beginning as I am patiently waiting for more options such as style editing. Watch out Confirmit.