[copperred]

Agree. As a QNX user and later QNX employee, I really missed the messaging system when I had to go back to Linux. In fact, I spent time writing a QNX-like messaging library now used extensively in our application (at my current job). Although not optimal from a performance perspective, most of the messaging we have is small packets and infrequent sends. I feel that it has really accelerated our app development, and forced a similar design pattern for each thread or "service" within the application. The same result could be had with a library such as Nanomsg.