It looks like a multi-node version of Linux - a bit like a MOSIX or something - but without the limitation that the hardware needs to be the same on each node.

It looks like a multi-node version of Linux - a bit like a MOSIX or something - but without the limitation that the hardware needs to be the same on each node. E.g. you could have one X86, one ARM, one FPGA, and a single app could deploy threads across each of those "CPUs". Equally, I guess it looks a bit like a Java application server in terms of function - applications appear to be compiled to whichever hardware target the application needs to run on. Utility infrastructure like shared memory etc appears to be part of the design, so the underlying hardware systems are as transparent as possible.