Een aanrader tbv routes is Tyre;
http://www.janboersma.nl/gett/index.php
In zijn FAQ-sectie staat het navolgende over TomTom One;
---- knip ----
7. My device is a TomTom ONE 3rd/4th edition and I cannot find any itinerary planning functions. What can I do?
Answer
By default you cannot use the ONE 3rd or 4th ed. for route planning. It is not in the menu of those devices.
But there is more:
Although I have no experience myself, from several other people I understand that the software inside the 3rd/4th ed. does have the possibility for route planning. It is waiting there to be activated: by changing the menu.
There is a small application, a menu editor, that can help you to change the menu (and unlock the ‘hidden’ possibilities). If you use that application, you do it, of course, at your own risk.
I have been reported that the menu designer does not work properly with TomTom firmware version 8: the TomTom device freezes on using the newly added menu items. Try to install version 7 if you want to use the 'advanced' menu.
You can download the menu editor from here:
http://www.gregoryduncan.com/ttmd/index.php" onclick="window.open(this.href);return false;
---- knip ----