One of the things that interests me about RISC OS machines is that they are probably the last remaining evolution of a microcomputer system, unlike other systems which are basically server-class systems scaled down to fit on your desk. For slightly perverse reasons, I like the fact the kernel doesn't support any form of multitasking. It's very easy to take full control of the machine, and make it single task (usually, entirely by accident).
That makes it of limited use for an internet capable box though, to be honest. As a user, I'd rather my downloads continued regardless of the fact the OS wants to see a disc that I've removed from the drive.
Regarding this 8-bit inspired micro, isn't that exactly what an Iyonix or A9Home is? The sad fact is that it's very hard to compete on price these days against the option of bootstrapping mass-produced parts together, even if you are able to make a simpler system that needs less parts.