Route planning on Tungsten E.
 

Does anyone know of a piece of software a bit like Autoroute I can use on a Palm Tungsten E. I won't be using GPS - I want to plan routes, calculate mileages etc. Possibly even in my quiet corner of the office - provided I've got all my work done of course. I want to cover UK and rest of Europe. I can buy another memory card if needed.
Thanks.