The shape of the phone obviously makes it easier to hold up to the ear and mouth when making or taking a call.The "swing lock screen" feature makes the wallpaper move if you tilt the screen. Touching the screen in different spots results in different unlocking effects and certain multimedia apps will open when you pinch from the lock screen. Perhaps the most interesting feature outide of the curved screen is the "self-healing" capabilities of the rear cover. A special film gets rid of scratches extremely fast, usually "within minutes".
The LG G Flex will be launched next month via the top three carriers in South Korea. So far, there is no word about a global release of the phone.
source: Newswire (translated) via TheVerge, Engadget