We have a Navman section. I know it's a bit hidden
navman-device-unlock-f141/AFAIK it's a winCE device.
Look here :
navman-device-unlock-f141/primo-for-navman-t13543.html?hilit=f35*#p111258So chas521 is saying it's a Windows device. Why would you want a different OS on it? Which is a bad idea anyway, unless you want a new paperpress.
And please : that section is there for a reason. When you have further questions, post in that section.