Today Sony Mobile officially announced Xperia Z Ultra , its first Android phablet at Mobile Asia Expo in Shanghai. It sports 6.4-inch Full HD TRILUMINOS Display, 2.2 GHz Quad core Qualcomm Snapdragon 800 processor, 2 GB RAM, 16GB of internal storage expandable up to 64GB via microSD card, 8-megapixel rear camera with Exmor RS sensor and ...