A simple telnet (and possibly SSH) server
A modern "graphics" API for text-based applications
Web-based application to execute shell commands.
Unified desktop and embedded Serial port API
Serial terminal with raw binary and ascii support
ISeeWhatYouAreDoing - a tool for remote acces with very! low bandwith.
STALLioN is a cross-platform C/C++ I/O library for CLI applications
Protocol simulator
PHP tools for developers and system administrators