The Exadata books
Achieving Extreme Performance with Oracle Exadata (Osborne ORACLE Press Series)
Expert Oracle Exadata
There are now learning paths and training courses for Oracle Exadata.
Have you also put an Exadata database machine on your wishlist for Christmas ? I have already cleared out the shed in the back garden.
For those of you who want to avoid disappointment you should know that Oracle On Demand are now hosting and managing Exadata machines . This hosting service can be co-located with OBIEE and other wonderful stuff.
So if Santa does not deliver you know where to go to.