Okay, for those of you that were also wondering how to increase the font sizes... I found the complete answer at the bottom of dwould's blog site.

http://danielwould.wordpress.com/navit-stuff/

The tags you are looking for are the following:

<itemgra item_types=”highway_city,highway_land,street_4_cit y,street_4_land,street_n_lanes” order=”10-18″>
<text text_size=”7″/>
</itemgra>
<itemgra item_types=”street_2_city,street_2_land,street_3_c ity,street_3_land,ramp” order=”11-18″>
<text text_size=”8″/>
</itemgra>
<itemgra item_types=”street_nopass,street_0,street_1_city,s treet_1_land” order=”12-18″>
<text text_size=”9″/>
</itemgra>

Change the text_size="x" to any value that is 15 or less. Anything greater and Navit will crash when loading. Again note that this is all on his blog site so reference it as necessary.

Now onto other items to address. Does anyone know how to change the units from kilometers to miles...?