17% of Americans have some sort of GPS device
120 million
Many advancements have been made, it is like any other technology. To see the latest cutting edge GPS capabilities go to www.findvehicle.net this is the world leader in GPS systems.
The tomtom gps has been around longer. However, they are both reliable gps systems.
there are 1000+
There are many good quality GPS systems for sale at any Walmart, Target, or Kmart. Best Buy also has many types of GPS systems. Also, you can get many of them online.
Personal GPS systems are smaller, portable GPS systems. They still have most of the capabilities of normal GPS devices including location, distance and most of the time a touch screen. There are many personal GPS systems available. http://www.nextag.com/personal-gps/compare-html
The earliest personal GPS systems were handheld, and were capable of displaying the user's location on an electronic map. They were first sold around 1980, and there were more than 150 million turn-by-turn navigation systems worldwide in mid-2009.
You can buy In Dash GPS systems on websites such as Amazon.com. For example, here follow this link: www.amazon.com/Pioneer-AVIC-D3-Navigation.../B000MY72F0.
The handheld golf gps has not been around very long. In fact, all gps systems have only been around a little over 30 years.
There are many different types of automotive GPS systems. But, one that has the best reviews is the tom tom. Here is a link to some of the others. http://reviews.cnet.com/best-gps/
to find the answer to your question: How are TomTom Rider GPS systems different from regular GPS systems? please see the following website to learn more: www.tomtom.com/
Alpine Electronics of America Systems make the GPS systems for Chrysler.