melonDS aims at providing fast and accurate Nintendo DS emulation. While it is still a work in progress, it has a pretty solid set of features.

• Nearly complete core (CPU, video, audio, ...)
• OpenGL renderer, 3D upscaling
• RTC, microphone, lid close/open
• Joystick support
• Savestates
• Various display position/sizing/rotations modes
• Work-in-progress Wi-Fi emulation for online connectivity and local multiplayer
• Experimental emulation of the Nintendo DSi
• ...and even more is planned!