This is a sweet little handheld emulator that sells on Amazon for about $30, and the developer community is significantly more responsive than the company that sells them. This week I made some changes to the keyboard input driver in a fork of the kernel. It is a really simple fix that is necessary because the button layout between the two versions is different.
The changes I made to the actual driver were in the same style as the change that was already made for a different model. The updated kernel can be found here: https://github.com/ericrkjones/kernel/releases until it gets merged back in.
Just download and extract the zImage for your device and plop it into the boot partition of your SD card. Some programs, like gmenu2x, will have the wrong button mapping for now, but since the switch was done at a lower level, it should mean that most programs will require less work to port to multiple devices.