Tunnelblick is a simple graphical user interface for OpenVPN 2.0 and higher. It is written in Cocoa and comes in a ready to use distribution with all necessary binaries and drivers. Versions of OpenVPN older than 2.0 are not supported, because they lack the management interface used by Tunnelblick.
The MirBSD Korn Shell (mksh) is an actively developed successor of pdksh (the Public Domain Korn Shell), aimed at producing a shell good for interactive use, but with the primary focus on scripting. It is intended to be portable to most *nix-like operating systems as long as they're not too obscure. mksh incorporates improvements from OpenBSD and Debian, as well as bugfixes and enhancements developed for the MirOS, FreeWRT, and MidnightBSD projects and Android. The emacs command line editing mode is UTF-8 capable, and Byte Order Marks are ignored in scripts. The shell supports large files, as well as all pdksh and some csh, AT&T ksh, zsh, and GNU bash features, is compatible with the Bourne shell and POSIX (within limits), has no limit on array sizes, and incorporates some other useful builtins and features. While being already fast and small (without losing functionality), flags to make it even smaller can be given at compile time. An interactive shell reads "~/.mkshrc" on startup.
jupp is a text editor. It is highly configurable and comes, besides the standard WordStar-compatible key bindings known from the DR DOS Editor, Turbo C, and Borland C++, with the configurations known from JOE’s Own Editor, namely joe, jmacs, jpico, jstar, and rjoe. It is a portable, compact full-screen editor with comprehensive online help, full key binding configurability, user-defined macros, extensibility, hooks on file open and save, a hex editor, multiple character sets, visual spaces, syntax highlighting, and much more.