And the releases just keeps on coming for LG. This time the Korean firm has released their flagship device, the Optimus 4X HD for the Mobile World Congress happening next week in Barcelona, Spain. The Optimus 4X HD is the firm’s Tegra 3 quad-core effort, and sports a large 4.7-inch True HD IPS screen at 1280 x 720 resolution. Aside from the large screen size and quad-core processor running at 1.5GHz, the Optimus 4X HD packs a 8-megapixel camera, and will hit the streets with ICS on board. No word on local availability or pricing as of yet.