This is an interesting development from a number of perspectives.
I recall when Oracle acquired the PC Express / Express MDB products from Information resources in the early 90s. Oracle did not really do a lot with the products.
With Oracle acquiring Hyperion, that leaves Cognos and Business Objects. I am betting that SAP will step in an acquire one of those two. Which one? I am guessing that it will be Business Objects because of their French (European) origins.
For the one left out, life will be difficult at the Oracle / PeopleSoft /SAP sites around the world.
But then that assumes that the acquirer actually does a decent job of integrating and developing the technology. Sad to say, if Express is anything to go by, Hyperion technology may well be destined for a similar fate.