My mom owns a small take-and-bake market, and she's been keeping her menu and inventory on an ugly and messy set of whiteboards behind the counter. I've developed a database that lets her check things in and out of the freezer with a barcode scanner, and we have all our menu and inventory data accurate and available on an in-house MySQL server (running Ubuntu Server).
I want to buy a couple of HDTV displays to mount behind the counter instead of the whiteboards, and have a dedicated computer display a nice-looking digital menu with accurate inventory numbers, a big red line through anything that's out of stock, etc. I can have all the data necessary accessible either directly through MySQL or via a simple JSON API-- but short of making a full-screen web browser with very nit-picky CSS, I'm not sure what software to use for the actual display. Anything come to mind, internet?
Ideally, it should be able to show a little slideshow of food photos on the side, or maybe a scrolling list of specials. I know this is possible, McDonalds is doing it in their new McCafe locations.