I managed to download the map and tried it out, It seems like Google map consumes more data than BB maps. I wish Garmin comes out with theSD card soon. I am not a big fan of mutimedia files on SD card.but Maps would be great since Rogers wireless charges you an arm and a leg for their data service.
* by the way i dont see turn by turn direction in google map but bb maps shows the moving arrow. Google arrow doesnt move unless you exit out and restart the maps. Am i doing somethign wrong?