I've just released a public test version of DOSBox 0.73 for the Dingoo A320 and Ben Nanonote.
Whilst I initially did most of my testing with the A320 I ended up doing my testing primarily on the Nanonote which is perfect for this kind of emulator.
What I am saying is that if things don't work on the A320, let me know :-)
Anyway, here it is.
DOSBox 0.73 Public Test Alpha
More information to follow.
See this thread on gp32x.com for information.