This looks interesting
This webinar is for you if your organization has made the decision to move from Exchange Public Folders to SharePoint, but you’re still wondering: “how do we make this transition as painless as possible for our end users?” If you’ve started down this path, you may already realize that Microsoft Outlook does not support 2-way synchronization with SharePoint. So, how can you recreate the Exchange Public Folder experience for your users in SharePoint?
http://blogs.officezealot.com/legault/archive/2010/04/15/21725.aspx