Sony announced the Xperia Tablet Z at MWC, a new member of the Z Series premium product line. The 10.1" tablet has a 1920x1200 resolution, 1.5 GHz quad-core Qualcomm processor and is only 6.9mm thick.
http://www.notebookcheck.net/Sony-announces-the-10-Xperia-Tablet-Z.88793.0.html