Jycet has released a new version of the front end for the NeoGeo emulator for the GP2X:
v1.1
-beta test finished, update version and public release
V1.0.1 (beta11) (no public release yet)
-fix TV-OUT scaling (I'm very happy now

)
-fix TV-OUT flickering
-fix TV-OUT synchro (thanks to Pepone's frame_skip source

)
-chg all options code
-add --ramhack and --no-ramhack option
-add --vsync and --no-vsync option
-add --tvout and --no-tvout option
-add --tv_offset=x,y option
-add --dumpsprite
-add unsupported options (16 max) in rage2x.cmd
-add activation or not of all command line from rage2x.cmd (request Pepone)
-add save for these command line states (request me)
-add background scrolling options (if no scrolling you can down rage2x clock to 66MHz)
-add exit_program line in cfg if you want to launch another prog than default menu
-chg preview reading to reduce sd access
-add rom=ZIPNAME rage2x command line to return on launched rom (need more test when gngeo2x'll support it

)
-add edit roms path 1 option
-add edit roms path 2 option
-add edit exit program option
-use gngeo2x craigix's ram tweak option for rage2x
-use gngeo2x --tv_offset=x,y option parameters to realtime center of rage2x in tvout mode
-add B button to launch a game
-add gngeo2x files checking (and "nochecking" cmd line for rage2x reboot)
V1.0 (no public release)
-fix no preview display speed (forgot to convert the picture to 16b)
-fix all over-range & missing settings in rage2x.cfg
-add -funroll-loops flag for compilation
-add rage2xclock option (you can change rage2x frequency from 66MHz to 133MHz)
-add credit screen with lot of name
-add memory cleaning at exit or gngeo launching
-add synch() for all save.
-chg to the last HW SDL lib by paeryn
-chg surface setting for hardware with double buffer (smooth now)
-chg default rage2x speed from 133MHz to 100MHz (by default)
-chg no preview picture (I prefere this one)
-chg NEO-GEO background logo (I prefere this one too

)
-chg selector picture
-chg rage2x boot speed (already fast but faster now

)
-chg the quick exit for a double START
-add missing screenshot and chg some.
-big update of database!
Catherine: Full Body’s English translation for the Vita