really? I would think the number of people who would need to use a high performance number crunching for their business logic is much higher than the number of

really? I would think the number of people who would need to use a high performance number crunching for their business logic is much higher than the number of people who need a high peroformance network stack. The network is usually pretty slow, and almost always the bottleneck is not any code that hasn't already been integrated into the OS kernel. For 99% of people, the OS network stack is fine.