I use a GPS in my work, wife uses one daily that came with lifetime map & traffic updates included and I have a ZUMO that I bought the lifetime Garmin update deal for (got mine from Amazon, no tax, no postage $81.76 when I purchased it). Thing is a smart phone, which we have three of, will NEVER replace a good GPS, I have tried to use both my Blackberry's map program thru the sync on company car and my Droid. You have to keep plugging them up to car charger, which seems to kill the battery life, then unhook everytime you get out of the car (10 times + a day for me) then reconnect when you get back in and the screen is just to small. Even using the sync deal so I hear it thru the speakers sucks as it is a different volume for the phone calls, the GPS commands and the radio. Just give me a good GPS with lifetime updates and I am good to go. Updates by the way are not just maps, locations, phone numbers etc also update. imho.