imagine this was REAL … PIONEER hire me
command central !!! no laptop … link up to 4 cdjs … vinyl timecode !!! 
(moved for the abuse you might take)
do you really need that much?
Need more buttons!
I like the idea, but it needs to be simplified. You would have a better value with a 12" X 4" HD multi capacitive touch screen that mounts on the mixer. The screen is a built in 4 stereo input 4 stereo output interface. Two usb3 female B connectors on the back to connect to a laptop/tablet running rekordbox dj. 4 port usb3 a hub on the rear for connecting multiple devices to rekordbox DJ. Also built in 4 port ethernet router for link. USB or 12 volt DC powered.
Youve built something more complicated and expensive than a laptop, to replace the laptop.
Yeah, he would do great at Pioneer.