Google Wave and Marketing

This morning I came across this question by Darya B. on LinkedIn.com:
"Has anyone thought of any ways that Google Wave could be used for marketing and similar business purposes? Thanks"

My response:
Google Wave is a great tool for project management. Use it during every meeting to document meeting notes, brainstorming ideas, take-aways, and next steps. Use it to share and track file drafts and associated changes.

When a new person is added to the team or Wave they can use the playback feature to get up to speed on all that has been discussed and done to date. There is less feeling out of the loop, or waiting to meet with someone before you can start. Google Wave allows the delivery large files to a client and tracks client edits more easily compared to regular email.

The biggest con is the current exclusivity of Google Wave invites; however, this will change once Google Wave moves out of Beta.

Before reading this question, I hadn't thought about how to use Google Wave for marketing. Off the top of my head, I think Google Wave could be used similarly to how podcasts, blogs, YouTube videos, and Wikis provide information to the end user.

In what ways do you use Google Wave? In what ways do you want to use it?