> You kind of proved my point: that's an embedded platform. No consumer is going to be running it. The last link indicates "VxWorks, PikeOS, and RTEMS operating systems available."

"Consumers" can be running it just as much as "consumers" could be running Raspberry Pis, which could also be considered 'embedded' by some. SPARC is no less (or more) proprietary than ARM: you can license the ISA, fab a CPU, and sell some kind of hardware stack.

Do you think it would be more or less difficult to get a license from Intel/AMD for x86(_X64) than ARM and/or SPARC so you could fab your own chips?