Harold Wong has released his Exchange 2010 Launch slides to slide share, the following is taken from his TechNet blog
For all those who attended my Exchange Server 2010 Sessions during the West Coast Launch Tour, I received approval to post my slide decks to SlideShare. My main SlideShare page is: www.slideshare.net/harold.wong.
The links to the individual presentations are below:
Let me know if you have any questions.