[From MSDN Blogs]
With SQL Server 2008 RTM announced, we wanted to give you an update on the release plans for Report Builder 2.0.
Report Builder 2.0 will ship as part of the updated feature pack for SQL Server 2008 in fall of this year.
The article continues at
http://blogs.msdn.com/sqlrsteamblog/archive/2008/08/07/report-builder-2-0-release-plan-update.aspx