You can now relive the Samsung Unpacked 2013 event thanks to its livestream on Youtube. The event was kind of dopey, but you can see all the great new features the Galaxy S4 has to offer instead of just reading about them.
Be sure to check out the Air Gesture demonstration at the 1:22 mark. Air Gesture allows you to fast-forward or rewind videos, move apps around, scroll up and down a web page, or accept a call with just the wave of your hand. Things don't really kick off until around the 41 minute mark, so make sure you jump ahead. The full video is after the break.