The Garmin Nuvi 880 is the best GPS unit out there. This is according to CNET, a technology review website.
Not all Garmin motorcycle GPS units are bluetooth compatible. There are, however, many that are. It is best to read all the details when purchasing a GPS unit. Bluetooth should be listed if it is available.
There are several GPS navigation units. To name a few of the popular units: Tomtom, Garmin, Kenwood, Motorola, and Magellan. You can find a full list of the top 5 here: http://reviews.cnet.com/best-gps/
Voice activated GPS is available in most of today's smartphones and GPS units. Currently, retailers like Walmart and Best Buy sell these devices. GPS programs can also be downloaded onto such devices.
Yes, the electronics gps system is battery powered. There are now a number of battery powered gps units available.
Many GPS windshield mounting units are available at very reasonable prices. Currently, Amazon.com has small suction cup units available for as low as $5, including shipping.
The Acura in-car GPS units were the first to get traffic information overlaid on their GPS displays, and still are the best.
Best Buy sells several different types/sizes of GPS units. They sell portable as well as handheld units, which some people might refer to as pocket sized. http://www.bestbuy.com/site/Car-Audio-GPS/GPS-Navigation/abcat0301000.c?id=abcat0301000&searchterm=gps&searchresults=1
The best GPS cycle computer with maps available on the market is the Garmin Edge 830.
GPS cases are available from a wide variety of physical and online stores. GPS cases can be purchased nearly anywhere that sells GPS units or music and phone accessories, such as Best Buy, Target, Walmart, Staples, and REI. Additionally, many websites such as Amazon and The GPS Store have cases for sale.
Amazon has several golf GPS units available to improve your golf game and assess the course on which you're playing. Check out some of their items in stock at http://www.amazon.com/b?ie=UTF8&node=3411001.
The Garmin n_vi 250 3.5-Inch Portable GPS Navigator appears to be the best and cheapest GPS for your car. It is available at Amazon.com for $188.00. This GPS has great reviews.
Trimble GPS units are not available in an array of different colors. Shades of gray and yellow seem to be the extent of what colors the company offers. http://www.trimble.com/productsaz.shtml