If you don't mind the bitbanging, Software SPI could totally be an option for your resistive touchscreen if the screen itself isn't a super active device. Also

If you don't mind the bitbanging, Software SPI could totally be an option for your resistive touchscreen if the screen itself isn't a super active device. Also, for the camera itself, way, way cool. I love the idea of stumbling on hidden gems in the rough and polishing them into a nice ring.