Microsoft has announced that Office 2013 and SharePoint 2013 previews are now available for download! This is exciting news and I will be posting some screenshots and comments as soon as I get it up and running in my test environment.

SharePoint 2013 Preview

http://sharepoint.microsoft.com/en-us/Preview/default.aspx

Office 2013 Preview

http://www.microsoft.com/office/preview/en