After more than two years Dwedit updated PocketNES, a NES emulator for Gameboy Advance.

Changes:

Seamless sound, no more crackling on square wave channels.
Correct frequency sweeps and triangle wave volume.
Completely automatic speedhacks that just work, so there’s no menu for them anymore.
FAST. Turn off VSYNC and watch the games zoom.
Many parts are are more accurate than before.
Working Savestates
Fixed many bugs

Thanks to http://www.nintendomax.com/viewtopic.php?t=13919&f=27 and http://gbatemp.net/t310827-pocketnes-10-5-2011 for the news.

http://www.pocketheaven.com/ph/boards/viewtopic.php?t=7385