nullDC-Naomi SVN r137 is released. nullDC-Naomi is an open source NAOMI Arcade System Emulator. It will NOT run Dreamcast games.

nullDC-Naomi SVN Changelog:
r138
nullAICA/audiosteam:
--Improved the way audio sync works, editing some code that called to win32 way too often
--moving 1 line around: +10% on speed (from 440 to 485% on my pc ..)
r139
pvr/threading
tweaked the render timing a bit, further 2-3% speedup on 3d heavy scenes for multicores ..

Download: nullDC-Naomi SVN r139
Source: Here