Linked from this article: http://linux.slashdot.org/article.pl?sid=05/11/20/2255217 I found this paper from MontaVista. In addition to being a good high level overview of how modern Linux kernels achieve low latency they give special credit to the Linux audio developer community and Paul Davis's open letter to the kernel developers for driving the evolution of Linux 2.6 into a viable soft RT platform. http://linuxdevices.com/articles/AT9697872711.html Lee