I found this too:<p>"Yup. Seen that one [UDT]. However, AFAIU, it focuses on moving large messages over high-latency high-volume links. 0MQ is focused on short messages on low-latency high-volume links."<p><a href="http://lists.zeromq.org/pipermail/zeromq-dev/2009-August/001186.html" rel="nofollow">http://lists.zeromq.org/pipermail/zeromq-dev/2009-August/001...</a>