GPS maker Garmin is sponsoring the Garmin-Slipstream team in this year's Tour de France, which started July 4, and ends July 26. Members of the cycling team are using Garmin Edge 705 GPS cycle computers during the racing action, and their data is being uploaded to the Team Garmin site daily. In addition to interesting stats (Bradley Wiggins reached 50 mph in the stage 1 time trial) you can see detailed course profiles and read about "Le Tour" from the riders' perspectives. Image © Garmin.

If you have a GPS and Web-enabled mobile phone, you can beat the traffic this weekend by visiting Traffic.com's free mobi.traffic.com, powered by Navteq. The site, designed especially for mobile devices, will display the traffic situation for your current location with color-coded highways. You may zoom in or out, pan the map, or even choose another city. Image © Navteq.

Dell is introducing GPS combined with Wi-Fi positioning as an option for its notebook and netbook computers. Rather than simply adding a GPS chip, Dell is rolling out a strategy that is built around location-based services. For example, it has created a partnership with Web site Loki to enhance local search, store and product finders, and location-aware social media. Dell is calling this package the "Dell Wireless 700 Location Solution," and it will be offered with the Dell Mini 10 first. Read on for more. Image © Dell

There are some reports popping up that the Apple iPhone3GS  and possibly the iPhone3G are overheating when running GPS-intensive navigation apps. I noticed that my iPhone3G, running OS 3.0, became exceptionally warm after running a GPS turn-by-turn nav app while driving for about 40 minutes. I would not describe the temperature as damaging to the iPhone or to my hand when I picked up the phone, but it got my attention. What are your experiences? Any overheating? Use comments below.