You mean MirageOS-based unikernel instances running on a L4 nanokernel running as Single-System Image on a Distributed Shared Memory machine made up of interconnected motes running the Contiki pico-OS? Sounds tricky to integrate and extend despite most of that being built already. Might be better to avoid the pico stuff given all the overheads and lack of cache.
It's been proven in practice for reliability and security in embedded space. They just called them Ada/Java "runtimes in dedicated partitions on microkernels." :) I always say that when mainstream starts to converge on what top engineers have been doing, then it's a good bandwagon to jump on. ;)