jensend writes: The 1.7 branch of Cygwin, the Unix-like environment for Windows, has reached stable status after about 3 1/2 years of effort. Among many other changes, this release drops support for Windows 9x. Since the NT API and NT-based versions of Windows are more capable and somewhat less of a mismatch with POSIX (for instance, they include a security model), this has allowed for code path simplifications, better performance (particularly noticeable with pipe I/O), better security, and better POSIX compatibility.
"The number of Unix installations has grown to 10, with more expected."
-- The Unix Programmer's Manual, 2nd Edition, June, 1972