The plan9 operating system * The lack of ifdef's that make cross compiling a breeze * It is easy to understand, compare to reading the Linux kernel http://pl

The plan9 operating system * The lack of ifdef's that make cross compiling a breeze * It is easy to understand, compare to reading the Linux kernel http://plan9.bell-labs.com/sources/plan9/sys/src/ http://plan9.bell-labs.com/sources/plan9/sys/src/