If given a choice between portable gadget that comprises of a million bells, which lets you to make calls and a portable gadget that does just a single thing, a majority of people would purchase smartphone that has killer GPS app. over a devoted portable sat-nav that simply gives you directions.

Finally, when Google and Nokia, in recent times gave away professional GPS software for preferred smartphones, the share price of GPS manufacturer TomTom plunged by 9% on the Amsterdam stock exchange.

It appears that 40% of all smartphones possessors and 80% of iPhone users use their cell phone gadgets to get turn-by-turn directions, which is precisely the thing that individual sat-navs perform.

At the moment, with the new apps on smartphones, wireless broadband and 3G networks, which is the idea of using your iPhone so as to find out where you want to go, Garmin-style, is positively an eye-catching one.

GPS smartphones offer faster re-routing directions, updated traffic information and also standard updated GPS information, something that you have to perform on your own inventiveness with a moveable sat-nav.

Portable GPS units have larger screens, better navigation assistance and are generally faster at re-calculating substitute directions than smartphone GPS units.