It was called 'Unite', some of the details: QnX clone for x86/32 which at the time wasn't available (nor would Quantum commit to releasing something like that). Pre-emptive multi-tasking, multi-user micro kernel based on the QnX API calls. It worked quite well, we built a bunch of devices that used it internally as the firmware (mostly: internet bandwidth management in the context of a hosting facility). Some HN'er has been trying to revive it in a virtual environment.