One of the leading manufactures of GPS systems, Tom Tom, will unleash its new industrial strength iPhone car navigation software globally on Sunday.

The new phone system will cost users $99 and is much more expensive than the current GPS devices on the market which retail for around half of that price.

While the price may be hefty, the system will does not charge any monthly or additional downloads fees.

While the application is fairly similar to the current vehicle version, there are a few extra and specified features for the iPhone. One of theses is the Meet a Friend function, where users can find an entry on their iPhone contact list and the Tom Tom will navigate you to their location.

Thee is an optional car mount, which charges your phone, offers amplified speaker for turn-by-turn instructions, lets you dial hands-free, flips to offer both horizontal and landscape orientations and adds an antenna to boost GPS reception. A price for the mount has not yet been announced.

So far the reviews have been positive with many saying they are pleased with the new system, and only a handful reporting negative reviews.

With the dominance of iPhones’ in the public, there is belief the growing number of GPS applications signals a death to the standalone versions.

But while the new Tom Tom GPS system is a fairly good representation of the original stand alone device, it is still fairly overpriced and compared to competitors’ versions, it is hard to say it is worth the extra cash.