Looks like developing of this nifty app is going ahead nicely.

This is of course matter of opinion but!
TomTom and other dedicated navigation software/hardware houses have spend probably thousands of hours on fiddling user experience and after all their income is depending on how well UI is designed.

Taking this account IMO map GUI from e.g tomtom products should be copy pasted to modrana and tweaked perhaps even little better or give user options to tweak it.

I have one TomTom one navigator at home and if you want some cam pics of different screens let me know.

http://blog.tmcnet.com/blog/tom-keat...om-tom-one.png
http://dandygadget.com/wp-content/up...ts_gadgets.jpg
http://www.wm6software.net/images/so...11_screen.jpeg
http://www.palminfocenter.com/images/tomtom6-palm.jpg