In December 2012, IDC has published "Highlights from Oracle OpenWorld 2012: Oracle Database 12c and Oracle Exadata X3"
IDC provides a concise description of the technical and business benefits of Exadata X3 and Oracle Database 12c (focusing on Pluggable Databases)
IDC states: “The announced technologies [X3 & 12c] enhance Oracle’s position as an innovator that continues to enhance the value delivered to customers”
You can download the full report here. (Oracle has purchased electronic distribution rights to this research note. Electronic rights expire in June 2013.)