The beagle bone has a ethernet port so one could hook up to the internet and use the touch screen to execute commands(or write a GUI to do it for you)
Since Beaglebone runs Linux one could hook up to a Wifi usb as it has two usb ports
7 inch lcd (Already released)http://beagleboardtoys.com/wiki/index.php?title=BeagleBone_LCD3
(releases next month)
For a non-technical user one would spend the money on the beagle bone ($89+shipping)
then the LCD 3" touch screen ($70+shipping)
and some Bitcoin client software for angstrom linux I don't think the Official client would compile with out some alternations and a Bitcoin lite client would be perfferable as the beaglebone doesn't come with much free space (1.5gb - 2.5gb)
I know the ins-and-outs of the Beaglebone so if anyone knows the ins and outs of the Bitcoin client we could work together in making an open source client that can run on Angstrom Linux(using any language) and provide a "Build it your self solution for non-techies but still want to hold a lot of money and feel safe doing it to because they put it together".