LG has officially revealed the G Pad 8.3 ahead of IFA.  It’s the first eight-inch tablet with a 1920 x 1200 WUXGA full HD screen. The device features a 4,600mAh battery, and runs Jelly Bean 4.2.2 atop a 1.7 GHz quad-core Snapdragon 600 processor aided by 2GB of RAM. Despite all that, it’s just 8.33m…