@ED They had a metal shell version of the WIN going back to the Indiegogo crowdfunding for the GPD WIN. At one point that was what they were going to release. They didn't in the end because the iniital purpose of it was to perform part of the passive cooling solution which didn't do the trick well enough. Thus the inclusoion of a fan and the reversion back to a plastic shell. I remember people asked that question of the WiFi at the time and they said it was tested and worked fine I think.