This session was an experience report by a company who decided to use Google Docs as a lightweight approach to Agile project management for a distributed Scrum. For their daily stand up meetings, they would use a shared Google Spreadsheet while having a Skype conference call. They also used this approach for the planning poker. In both instances, a single person would edit the spreadsheet, but being a shared Google Spreadsheet, everyone would see the updates in real time.
One thing they do that I found interesting is that they have a couple of LCDs near their Scrum meeting area that constantly display information about the project, such as snag count, the status of the build, etc. The goal is to create or encourage participation through shared and visible information. The term usually employed for this is "mieruka" which means "making visible" in Japanese, and seems to have been pioneered by Toyota.