I was wrong. Actually, I was mislead and believed what I was told about Visual Studio 2008 SP1 and SQL Server 2008 (Katmai) RTM. Apparently, the Katmai report processor was not incorporated into the ReportViewer (or as they now call it the "MicrosoftReportViewer") control during SP1. While it might look like Microsoft had upgraded the ReportViewer (it has the new "Tablix" control and other Reporting Services 2008 features), the RDL generated by the newly released Katmai RDL code generators is NOT compatible with Visual Studio 2008 SP1 version of the ReportViewer control. This means you can't take that set of reports you've generated with the new Katmai BI tools and import them into VS 2008 like you could take Yukon reports and import them into VS 2005 BI tools. They tell me that it's going to be another 6 months before the updated ReportViewer control hits the streets. By then we should have plenty of Katmai reports to import!