According to the new ad from Samsung about the Samsung Galaxy S6 Edge, it is all about the camera.
The new ad demonstrates the quick launch feature of the S6. The Galaxy S 6 and Galaxy S 6 edge have a 16 megapixel camera that launches in less than a second from the homescreen– so you can always be ready for your next perfect shot. It reduces the chance of that fleeting event that happens without notice.
Check it out below
https://www.youtube.com/watch?v=vfRYwHkZcxU
I just got mine yesterday. I intend to try out this feature