Great to see OlapObjects have announced integration of Xcelsiusinto their web product offering.
Version 5 was looking cool when I played with the demo.
www.olapobjects.com/
I wrote an article on the xcelsius website showing how anyone can hook up Xcelsius to live TM1 data here:
http://www.bobjects.com/email_imp/partners/nl_xcelsius/article5.html
You can also do extracts from TI to xml and then show in Xcelsius for live dashboarding.