Using a touch screen Arduino (the arLCD) I created a program to help me communicate with my Spanish speaking customers. Take a look. If you are interested in making one of your own more info on the arLCD can be found at the link below. Support your local troop because Girl Scouts Rule!
By popular demand the arLCD Case is a thing on http://www.thingiverse.com/thing:199299 ! This 3d printed case holds the arLCD and has access to all the pins. The lid is removable and on the back side are mounting holes. Power and USB ports are also easily accessible.
arLCD touchscreen with Arduino built in!