Today i finally had a chance to look at SSRS 2008. some of the new features that i already like about it:
also, the new Report Builder 2.0 looks cool, unline the old builder, this one allows you to connect to any data source known to the designer. not only report models. I am still to experiment with custom built data extensions. I find more user friendly for report designers who are not developers or dont want to deal with Visual studio tools to create and design reports.
the new builder can be downloaded from here: http://www.microsoft.com/downloads/details.aspx?FamilyID=9f783224-9871-4eea-b1d5-f3140a253db6&displaylang=en.
cheers,- mutaz