Aaron reviews the Sony Xperia Z Ultra, a humongous version of the Xperia Z.  Available internationally and unlocked through Negri Electronics, the Xperia Z Ultra features a 2.2 GHz quad-core Snapdragon 800 CPU, 6.44-inch 1080p HD display, 8-megapixel camera with 1080p HD recording, 2 GB of RAM, 3,050 mAh battery, and Android 4.2 Jelly Bean with Sony's UI.  It looks and feels similar to the Xperia Z, but is gigantic - even for phablet lovers, this may be a bit too big.  That said, the Snapdragon 800 CPU is incredibly fast, making it a multimedia powerhouse.  Is it worth buying unlocked?  Part 1 of 2.