I have another question for you this Friday afternoon! I am working with a little one (nearly 3), with lots of motor involvement, delayed visual maturation/CVI that is resolving, non-verbal, but will often answer yes/no questions very appropriately. Mom would like him to be able to use a double switch to make choices, with left side of switch controlling left side of iPad screen and right side of switch controlling the right side of the screen. The Blue 2 Bluetooth switch would be nice because needs for motor placement don't match needs for vision placement. Does anyone know of an app that would work for this, or other ideas???? Thank you!