Awesome project on google code... all that's missing right now is graphing :
would post a review once I use it ... right now still "mastering" silverlight .... i like to read lots of books before I start coding on something new (after an initial dip ofcourse!).
PS: Here are some commercial Silverlight SSAS tools I found:
And the VERY promising :
Right now I am reading:
Pro silverlight 3 in c# 2008
Foundation of expression blend 3 with silverlight
so it may be some time.