I use Tom-Tom in the iPhone and it is good. The most incredible thing is that if I make a wrong turn it recalculates new directions. I knew this existed in classic GPS devices but never realized how useful it was until I actually used it. Plus it does not require a signal which is actually really useful when you travel to Canada (from the USA) where you cannot use the local telephone service unless you are ready to pay a lot of money.
I think iPhone with Tom-Tom is fine. It costs $60 dollars but you can share it with 4 other devices which means you can spread the cost.
You just did that thing which I tried to prevent anyone from doing with my last paragraph.
Sorry but the GPS solutions on the iPhone just aren't the same (btw, direction recalculation is a no brainer and of course Google Nav does that, and a whole lot more like local data polling from other Google Nav users to determine realtime road speeds for path redirection)
Anyway, it is the full OS integration that is key. Basically anything on the phone that displays an address (web browser, Google Maps, apps like Yelp, etc) displays it as a clickable link letting me instantly pull up directions and switch into nav mode. This sort of integration is huge but sadly the sort of thing people tend to gloss over unless they've actually experienced it, which is why I tried to preempt that with the (also flawed) comparison between Google Voice Search and Siri.
> Basically anything on the phone that displays an address (web browser, Google Maps, apps like Yelp, etc) displays it as a clickable link letting me instantly pull up directions and switch into nav mode.
This is in iOS too. Of course you don't get turn-by-turn, just directions, but if Apple is eventually going to add turn by turn you'll find it there.
I think iPhone with Tom-Tom is fine. It costs $60 dollars but you can share it with 4 other devices which means you can spread the cost.