Is it possible to utilise and old iPhone screen module as screen for the Arduino? Would be great if it was possible to use the screen and the touch interface... the cost of the screens are fairly low on eBay.
I've never tried it, but I'll say it's incredibly unlikely. The pixel count alone is much higher, and an arudino only has so much memory. Additionally, most Arduino screens have built-in dedicated controllers which take almost all of the work off of the Arduino. The Arduino only has to send the commands.