Besides releasing Reporting Services in SQL Server 2008 R2, we were busy working on a number of improvements for the Reporting Services SharePoint Add-in as well.
SharePoint 2010 Reporting Services Add-in
The SharePoint 2010 pre-requisite installer now automatically guides you to download and install the Reporting Services 2008 R2 for SharePoint 2010 Add-in. Btw, you can download the Reporting Services add-in manually as well. The following is a brief summary of new Reporting Services features for the SharePoint 2010 Add-in:
SharePoint 2010 Access Services
Reporting Services 2008 R2 technology is also an integral component of Microsoft Access Services. Access Services has two deployment modes:
You can also read more in the MSDN documentation about using Access Services with Reporting Services, and get an overview of Access Services with Reporting Services in this Channel 9 video.