As I mentioned in a previous blog, one very important SSRS enhancement in the recently released SQL Server 2008 SP1 is Report Builder 2.0 ClickOnce. This lets you reconfigure the native and SharePoint integration modes to let the user use Report Builder 2.0 instead of Report Builder 1.0.

Note that in SharePoint integration mode, installing SP1 only is not enough. That's because there are actually two instances of RB2.0 ClickOnce. If you install SQL Server 2008 SP1, this will provide an update for native mode only. For SharePoint integration mode, you must refresh the Microsoft SQL Server 2008 Reporting Services Add-in for Microsoft SharePoint Technologies. This is necessary because the ClickOnce bits must reside on the SharePoint server. The April 2009 version of the add-in can be downloaded from here.