I've recently purchased a WinCE6 (embedded) satnav via ebay (Sold by "Gomallgo").
It doesn't really have a name, but the vendor called it: "A 4.3" Navigator 4GB 2009 Europe Map SpeedCam 128MB SDRAM". (He also has 5" units). Comes with a 4GB SDHC card with iGO8 Europe (a good road satnav prog). Plenty of space left for SKD.
Info for Tim's hardware collection:
It has .net 2 ; siRf iv, & a 600 MHz processor. Satellite reception is very sensitive & altitude does not need correcting. Battery life about 2 hours. SkyDemon inFlight runs as well as on any other unit I've tried.
Regards,
Max.