My Nes is a portable open source NES/FAMICOM emulator written in C#. My Nes supports more than 900 Nes games which can be playable perfectly. It play nes games with the most accuracy.
Hatari is a cycle-accurate Atari ST emulator for Linux and other systems that are supported by the SDL library. The project has been moved to http://hatari.berlios.de/ now, but this site will stay for providing the historic releases before version 1.0.