Hi I'm Dusty Attenborough, in the korea GP2X fan site. gpain.org
This firmware has a some bugs. GPH is currently working on new firmware bug-fix.
Until the announcement of new firmware does not recommend installing this firmware.
1. text crashing in flash player menu (marked with a wrong Chinese)
2. calender can not view
3. in the setting, information, firmware version displayed 1.1.1 (but really 1.2.0)
4. some game display crashing (ex. propis demo)
5. Yet undiscovered bugs..
thanks
p.s. Google translation was used. I don't know the right means to be passed.