The GPD is nice, but the keyboard is not as good as the Pyra.....
GPD if you want to run Windows and Pyra if you want to run Debian or other linux distro.....
And Pyra is in final stages of production tweaking (see Pyra forum.....). Developer units are out and in hands of devs....
Pre-orders are being taken.....
If all goes well, Pyra will be out by end of year....