Blog from the Microsoft SQL Server product team.
SQL Server 2008 R2 is a big release, with new “editions” (MSDN contains the detailed feature by edition matrix), and includes also significant enhancements in Reporting Services. The stand-alone download package for Report Builder 3.0 is available as well.
More details about Reporting Services 2008 R2 and Report Builder 3.0 can be found here:
So, is Report Builder 3 replaced BIDS or will there eventually be a BIDS 2010 release?
Report Builder 3.0 does not replace BIDS. Report Builder 3.0 may be sufficient for many of your scenarios, but BIDS offers additional functionality, such as report project support. You can find more information about this here: technet.microsoft.com/.../ms173745.aspx