Just received an email today from the MAME XM author and glad to announce MAME XM has been updated with S^3 compatibility:

Changelog:
-----------------------------------------------------------------------------------
1.04.188 -- released by AMZ - 2011 - Apr. 18

- (!) Symbian^3 comaptibility options



Q: What is MameXM?
A: MameXM is a port of MAME (Multiple Arcade Machine Emulator) for Symbian S60v5 OS.
This emulator can run over 2000 games of 'golden' arcade era
('80 and '90) and NeoGeo games too.
MameXM is freeware, released to public domain.



Q: I put mame roms zipped in C:\Data\MameXM\Roms or E:\MameXM\Roms but the 'scan for games'
command did not find anything (or finds only few games).
A: The roms must be in Mame 0.37b7 format, this means that the roms for the latest
mame version (0.134) generally did not work with MameXM.
Mame 0.37b7 was released in 2000 and the various game-rom contents is today
(2009) quite different from the past. Version by version mame core uses
more 'refined' rom dump even in slight different format.
So you must own the so named 'Rollback rom set' that contains all rom-files
removed from past mame version, and mix this Rollback Set wih the newer
romset (and the MameXM definition file) to obtain the correct mame 0.37b7
romset needed by MameXM.


Other Symbian ^3 devices
To enable Symbian^3 compatibility please go in 'Settings' panel and searching the option no. 5 'Compat.Flag' and set it to 'Cmp.B'.

More Information Please go here: [Only registered and activated users can see links]


:good2: Enjoy!