fackue has released SMS+SDL 7.1 for the Dreamcast (SMS/GameGear emulator). He already announced that he will most likely not continue the work on his new emulator.
This is a very quick port of SMS+SDL 7.1 by Gregory Montoir which was based on 0.9.4a of SMS Plus by Charles Mac Donald. Put your .sms and .gg ROMs in /roms and burn. The menu is a bit ugly, and not nearly as good as I'd like. There's currently no way to get back to the menu when you play a ROM - this was just a test port and I'll most likely not work on it anymore. The ROM list code was taken from BlueCrab's SMS\GG\SG-1000 emulator, CrabEmu so all credits goes to him for that. http://dchelp.dcemulation.org/downloads/smssdl-dc_01_bin.zip http://dchelp.dcemulation.org/downloads/smssdl-dc_01_src.zip
Source: DCEmulation forums