I haven't had time to get them completely working, but I have three of these in my setup. I found that backporting this patch https://patchwork.kernel.org/patch/101673/
got the kernel to recognize almost all of the keys on the remote.
I haven't had time to look into how to map the key presses to something useful in LinuxMCE, but using the "GO Cordless GC1005M" template almost everything works. The one annoying thing that doesn't work currently is the green menu button in the center, but I think that's just a matter of mapping the right key in the device template.
I haven't even tried to get the LCD to do anything useful. It would be nice if it could operate as a mini-orbiter. But I suspect it would take a lot of reverse engineering to get working properly.
I'll post the changes I made to the HID driver tonight when I get home from work.