[hcs]

Interesting, it reminds me a bit of the game TIS-100[0], similar idea of an array of very simple units interacting by I/O ports, blocking until a read/write to another unit can complete. I didn't know there was a real architecture like that!

edit: It seems the transputer[1] was similar, hadn't heard of that either.

[0]: http://www.zachtronics.com/tis-100/

[1]: https://en.wikipedia.org/wiki/Transputer#Links

[mp8]

The transputer actually has a successor called the XCore[0], which is produced by XMOS. They're founded by the same fellow that came up with the transputer (David May).

It's a similar concept again - it's a multi-core chip for embedded applications, and the cores communicate using an on-chip network. Each core is like a regular CPU with a clock though - the GreenArrays approach seems to be completely asynchronous.

[0] http://xmos.com/