I've ended up making a few Arduino handheld devices, controllers, games, calculators, cell phone.. Anyway Through this I have evolved a pretty nifty 3D printable case and a c++ framework that takes much of the coding drugerey away from developing a small GUI.
Is it a polished and complete package? No. Not by any means. I realized the software would never be finished as far as I'm concerned. So maybe I should just let people at it to get what use they can from it, as it is. There's a enough to get you going and tools to build the rest.
The Star Trek Game. Notice the case has a cutout for accessing the SD drive.
The package contains the .stl files for the case. The Solidwokrs files for the case are also included so you can modify it. Some limited assembly and wiring notes. There is a simple example .ino to get your first few things running on the screen. And of course, a Mass of library software to make it all go.
Here's the webpage with links and notes.
Good luck, let me know how it works for you.
-jim lee