the software is a multitouch lemur style traktor interface for touch screen tablets… looks interesting
as there’s no traktor api that i know of, it looks like you have them both running on top of each other, and the multi touch interface has windows/holes in the gui to see the important bits of traktor
as multitouch screens become more prevalent, it would make sense to me for NI to include multi-touch support natively in Traktor itself, but this looks like it could be a good solution in the interim.
Hate to say it, but this could also be done semi-easily on an Ipad as well, combining the functionality of TouchOSC and the screen viewers that are already available.
In fact, if you wanted multi-touch functionality right now like this, PD has multi-touch, and could be layered over traktor in a similar fashion.