FCEUX is a cross platform, NTSC and PAL Famicom/NES emulator that is an evolution of the original FCE Ultra emulator. Over time FCE Ultra had separated into many separate branches.

Changes:

* Added file browser to GUI.
* Rearenged all settings to three submenus: main, video and sound. Almost every original option is available now; like ntsc tv emulation, PAL timming, individual nes apu channel volume, etc.
* Added new 280×240 scaler in video settings.
* Merged last svn revision (4/03/2010).
* Added fcm and fm2 movie support.
* Added virtual mouse (gun) support.
* Added hotkeys support (See features).
* Added screenshot option to GUI. The screenshot is saved in png format in the /usr/home/.fceux folder.
* Added softreset nes using power switch.
* Added option to save (override) default config to GUI. NOTE: There is no option to recover the default config yet. So if you want to do that just move /local/home/.fceux/fceux.cfg file.
* Added fractional frameskip (See features).
* Replaced SDL driver with a minimal driver using Slaanesh’s minimal library.
* Fixed gui vsync.

NOTE: Please be sure to remove all previous config files from /local/home/.fceux, both the main fceux.cfg file and the cfg folder

http://boards.dingoonity.org/dingoonity-news/fceu320-v0-3-beta-released!/