Good alternatives to Cygwin? - Cygwin doesn't support natively support Win32 apps

Question

Update 1/9/2014: TL;DR version: Go to bottom of this post for a way to get Cygwin to be able to call non-Cygwin programs.

After having spent the ti

Answer 1

2016 Answer

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I built Cash this year, a cross-platform implementation of Linux commands running on Node.js.

This supports both global installations of each command in your path, or an interactive shell with full support for bash-like syntax, command piping, autocompletion and history.

This additionally runs win32 apps within the shell.