Basically, full details are here:
Seems to be a somewhat reputable company, they made another console called "GPD XD" before and people seem happy with the device.
I'm considering buying one of the GPD WIN's, especially since it pushes all of my buttons (so to speak, ha).
64GB internal storage (eMMC 4.51)
5.5" multi-touch ips screen (720p)
Intel Z8550 Cherry Trail (refresh from 2016Q1, exciting)
USB 3.0 port, sd card up to 128GB supported
1 year warranty
gamepad/omron switches for gaming (should be possible even on an atom considering that it's cherry trail and not bay trail like linx/lamina)
apparently supports linux as well, and the uefi is a 64bit one, so MAYBE even windows 7 if you're adventurous?
I'm not sure if it's okay to post this here but I think it's pretty exciting for portable device lovers like us !