What can I say.. I already ported a couple of dingux games to that device. It's fully binary compatibile, the only difference is the color depth (16bpp on dingoo and 32bpp on nanonote).
And the difference between the hardware is that nanonote uses an "low end" version of the cpu used in the dingoo, and can't overclock to 430MHz. It runs in 330MHz and overclocking isn't recommended.
Oh, and forgot to mention that they're in touch with booboo, so any kernel tweaks they get there will probably also benefit the dingoo.
Here's a couple of pics of my eduke32 port to nanonote: