You can be your own Geordi La Forge and build yourself a fully capable GNU/Linux pocket computer with this uber inexpensive five-inch touch screen and a Raspberry Pi.
The Video Screening Room
A Raspberry Pi enthusiast in Thailand shares this video showing how you can take your Raspberry Pi on the road with a $28 five-inch HDMI touch screen available from AliExpresss.
The touch-screen capabilities of this cute device bring to mind HyperCard-like interactive stacks that youth and adults could create using the free, open source Community Edition of LiveCode. Imagine students showing their parents or guardians interactive presentations — including text, graphics, and video — from branching “cards” that the student themselves had made.
This cute little screen makes it feasible for a school to send such a presentation home with a student. For those of you too young to have witnessed it, HyperCard — which shipped free with every Mac between 1987