qwerty, you missed the point of his post. He hacked his navigation device to do something other than navigation. It would seem his Nokia nav unit is running Windows CE, so he hacked it to install and run CE apps on it and modify system settings.

I did the same thing with my Navigon unit, which also runs Windows CE. Try doing this with an embedded Linux device. TomTom's nav devices run embedded Linux, and I found no way of hacking into it and installing any available apps (there are none, even if they were, selection would not be close to number of WinCE apps) on it without serious mod/recompiling (not that I know how).