sat nav mobile phone?

[lixxus]

im looking to purchase a symbian phone, so that i may use the tomtom sat nav software with it
the following models interest me
nokia e60
nokia e70

does anyone know whether the tomtom sat nav sofware is anygood on the pda/mobiles phones.
is it just the same as the actual car ones?

 

[paradigm]

My TT5 on my PDA-Phone is almost exactly the same as the units that run the same software level. Functionality remains the same.

I would imagine the Symbian Series-60 TomToms are slightly cut down, a) to fit the screen, and b) due to the lack of touchscreen.