I am currently making a Nintendo DS style controller for the unity iphone.
If anyone knows of links to other similar controllers with code please let me know.
Thanks in advance 
Use the Occlusion Culling as a base, it’s left control will need to be modified, but it will show you how to control the camera, reference the right control for forward/back. Anyways, it’s a good starting point.
On a different not, that picture is not the DS i know of. Weird.
It’d probably make more sense if you saw the whole thing to see the dual screens:
I’ve still got one of these 
Haven’t played it in about 15 years though…
Yup, i know that wasn’t a picture of a DS but they are very similar. The game and watch series from Nintendo was the grand daddy to the DS and very similar.
Thanks for the nicer pic
I had started about a week ago to pick apart the occlusion demo and i have made some progress but it is in a slightly different direction to what I am after as it is an analogue style controller. I got it to control an object in the game I was after. But I wasn’t that happy with it.
Well doing an analog d-pad isn’t all that bad. I mean you have an idea of how you want it to control your character/game. All you would need to do is grab/ make a graphic of the d-pad, decide how you want to break up the image for the pressing of the directions. and use a RECT for each direction and if it contains a touch then you run what ever code for the direction.