Still too abstracted and complex to be really useful
This device (although less abstracted and obscure than the Raspberry Pi) is still too complex to really impart the fundamental concepts of computer technology. Kids would be vastly better served by a simple board carrying an 8-pin or 14 pin PIC, plus the device data sheet. The skills we are primarily short of (even among developers) are much nearer the metal than current programming practice encourages or imparts. A PIC solution would offer two key advantages: it would probably be cheaper, and the device architecture and instruction set are so simple that a child could grasp them in a few days, leading to basic understanding of machine architecture, Boolean logic and the electronics of interfacing, little or none of which is acquired by high level coding practice, particularly at school level.