Google Maps Navigation

Quite an awesome GPS navigator with a lot of advantages. Though I do see some disadvantages, like the high price of a phone and service plan compared to a normal GPS navigator. High bandwidth price if you don't have a service with a flat fee. Also it won't work if you don't have cell phone coverage, which may be a problem in certain areas. However this might be solved if they develop a program that determines if your route will fall outside of coverage and then caches the google maps route beforehand.