Brian Welcker (who is leaving SSRS team – good luck Brian!) has announced a long explanation of the Report Builder 2008 positioning.
For me (and all of you who live in the multidimensional business…) the most important part of the post is this simple sentence:
[…] However, for folks building reports against Analysis Services cubes, auto-generating a model is no longer required.
This is really a good news who will drive Report Builder adoption in SSAS shops. I still haven’t tested Report Builder 2008 very much, but this news will help me to find the time to do it.