Making your own smartphone or raspberry pi

Hey, i posted this on 8chan and i was curious about your opinions on the subject. I was wondering if you could build your own smartphone or your own raspberry pi board just by buying an arm processor, some ram and a touchscreen. The motherboard would be made like this : https://www.youtube.com/watch?v=Q4PKkJu6Doo The final result would be essentially a mini laptop who has a phone call and text message function that you could de-activate in order to dodge GPS/GSM tracking. It would also be used as a device for pentesting in public without looking suspicious. > Link to the thread : http://8ch.net/tech/res/434358.html#434358 > Pic related is how it would look

I like this idea. I wanted something for on the go pentesting.

>>13688 I don't think milling the PCB will be precise enough for small components with many pads such as the processor.

>>13705 Isn't that why sockets exist?

Yo it's a 404.