Aaron unboxes the Sony Xperia Z Ultra, a turbocharged phablet that's going head to head against devices like the LG Optimus G Pro, Samsung Galaxy Mega 6.3, and Samsung Galaxy Note II.  The Xperia Z Ultra packs 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, 16 GB of internal storage, 3,050 mAh battery, and Android 4.2 Jelly Bean with Sony's UI.  It's available unlocked through Negri Electronics online (www.negrielectronics.com).  With new devices from LG and Samsung on the way, is it worth the buy?  We'll investigate.