Christopher Pow has joined forces with Tim Sarbin aka “essial” to make NESICIDE open source, cross platform (OSX, Linux, and Windows) and multi threaded. This bumps NESICIDE to version 2 and the rendering is done in OpenGL, GUI is using Qt, and audio is using libSDL. NESICIDE now has a git page, which can be found at http://gitorious.org/nesicide. essial says that if you would like to contribute, you can contact them (most of the time) at irc.freenode.net on channel #nesicide
Staff note: There is no new binary release yet, so for now if you’re interested in trying out the program you’ll have no choice but to grab the current source and compile it for yourself.