There are a number of things they must have cracked to get this right.
1. The resolution looks impressive, they must have converted some of the output of the phone to a vectored format to make it work
2. The large amount of conductive material, based on a grid system similar to the iphone must have set them back a bit. I am also unsure who would supply them with such a large screen
3. Jailbreaking an iphone, obviously this is easy, but it is interesting that they run it through an app. Why would they fake running it through an app?
The timing of a "video played with choreographed moves" would have to be excrucitatingly timed. Their movements are too "lazy" for that to be timed that well.
Believe it or not, we have investigated this for a particular project, and I know a little bit about the technical barriers. It is, like others have said, a VERY good fake - or a genuine breakthrough.
I suspect they are keeping their names secret due to the "jailbreak" element. They may also already have some jobs they wished to protect.