LG's second new Android smartphone for Mobile World Congress is the LG Optimus LTE Tag, and the company is hoping you'll get into the habit of tapping it against your dashboard. A 4.3-inch 1.2GHz dual-core handset - that looks, almost ridiculously so - like Samsung's Galaxy S II - the Optimus LTE Tag includes both 4G LTE support and a few sheets of sticky NFC labels that can be used to switch the smartphone between various modes.