Google are testing a new online storage tool; Cloud Picker according to techcrunch.
The tool is connected somehow to Google Apps, Docs, and Sites, and was presented to users when they tried to insert a file or image into a Google site. When they tried to embed the file, a “Google Cloud Picker” window opened and asked users to log-in to their Google Accounts.
Read more at: http://techcrunch.com/2010/12/02/meet-cloud-picker-googles-stealthy-new-storage-product/