Chui has released the beta 2 version of Neo4all which is a NeoGeo CD Emulator for the Dreamcast Console.

Here are the notes from the readme:

* Many speed ups
* Almost every game supported.
* Emulation speed boosted.
* Improved sound core.
* CDDA fixed in many games.
* Z80 core changed to MAMEZ80.
* Scanline flickering remove

Download from the official site Here