FakeNES is a portable, Open Source NES emulator that is written mostly in C, and uses the Allegro library for cross-platform capabilities. The officially supported platforms are DOS, Windows 9x/2k/Me/XP, Linux, FreeBSD, QNX, BeOS, and Mac OS X.
A compiler/interpreter suite for developing images.
An AGI (asterisk gateway interface) client implementation for Erlang.