Castaway, the Atari ST emulator for the GP32 was updated recently, below are the changes in version 15.3.

CHG: Improved audio.. better sample handling and better change from YM to sample and back to YM.. Xenon 2 theme song is now much better

Better for Starglider theme, but still not perfect there. I think I need

to make a bass boost as well..

- Official Homepage

PC2E, the PC Engine emulator, was updated (1/23/05 release), and below are the changes in this release.

- Improved the mixer device handling - mixer volumes are now configurable with pc2ecfg.exe

- Supported pause/resume operation on CDDA playback

- Fixed some bugs regarding to the 6-button pad

- Fixed a bug in PSG master volume attenuation

- Restored the "stretched" screen mode with some improvements

- Restored the hardware-accelerated fullscreen mode

- Added an option "Use Hardware Acceleration"

- Added an option "Sync to 60Hz fullscreen"

- "READ Q SUB-CHANNEL" operation is temporarily disabled for performance

- Updated the simple configurator (pc2ecfg.exe)

- Updated the TOC database

- Official Homepage

RockNES is NES emulator for Windows.

• SBC instructions work in terms of ADC (thanks tepples);
   
  
• Simplified LDA instructions (work in terms of LDA Absolute offset);
   
  
• Fixed NESticle savestate loading somewhat (thanks Peach);
   
  
• Removed a junk (unused item) from CPU context.
  

» RockNES homepage.

ZSNES was updated once again. Here's what's new:

DOS Only:
Fixed label for Fullscreen/Widescreen options. [ipher]

SDL Only:
DESDDIR support. [theoddone33]

All Ports:
Corrected output of BRR decode for invalid ange values (>12). [TRAC]
Fixed sustain level 4 (5/8). [TRAC]
More window boxes now have borders. [ipher]
Close zip files properly when IPS is not found in zip (fixes crashing with certain zlibs). [Nach]
Cleaned up some code. [Nach, ipher, grinvader]
Ported chip detection to C, improved BS detection. [Nach]
Ported rewind to C (thanks Nach, TRAC). [grinvader]
New reminder text. [grinvader, AspiringSquire]
Rollback of "Improved accuracy of base rates used for ADSR, GAIN, noise, and echo emulation". [ipher]

Get it from the SourceForge CVS Repository.