You just have to write a MIPS emulator for ARM. Off you go
TBH, that's the only thing I don't like about my Dingoo: the fact that it doesn't use an ARM compatible processor, I'm sure we'd have a lot more interest from developers.
That and the mediocre shoulder buttons. And the MiniSD slot instead of MicroSD. But that's really it now
ARM core + decent shoulder buttons + microSD and I'd keep my Dingoo until I die, and I'd get buried with it!