It is 1 year (first anniversary) that SQL Server 2008 Community Technology Preview is released, I have seen many good things and few peeves about this new version of SQL Server. Not to mention about largest conference is lined up for the users aka ' Tech-ed 2008 ' which is a huge learning opportunity...
Few out there are still not comfortable to install or test the SQL 2008 (Katmai) as SQL 2005 is still new in the field and users are getting eventually hands-on experience. So in order to get hands on for the documentation 'only' for SQL 2008 (katmai) then you can download the documentation files...