Screaming Penguin - Source Does Matter

In addition to just the presentation thing, the app includes real time chat. That way you can remotely play buzzword bingo during the next "due diligence to leverage the verticals across the enterprise" spewfest.

http://docs.google.com/Present?docid=dcchgt8c_11dxhk8j&fs=true

For actual information on the topic, check the announcement: http://googleblog.blogspot.com/2007/09/our-feature-presentation.html.