My friend is building something (in fact, he already built it) that requires an embedded device. The requirements are that it be as cheap as possible and be able to run a GUI that allows the user to select a drink or create a drink and have a little bit of additional memory so that the user can save a drink. The GUI will be displayed on a touch screen.
My question is: what language(s) would be best for this, does anyone have any links to helpful information, and does anyone have any advice on the hardware needed, how much it costs, etc? I'm assuming it will be pretty cheap because it isn't speed critical and the only requirement is that it can run the GUI.
Thanks for any advice.