A smartphone is a great device for travelers as it offers numerous location-based apps, including those for that can provide directions, plus offer information on local businesses.

However, cell phones aren't always put to smart use. Mobile apps likely increase the dangers of using a phone while driving. Fatalities linked to distracted driving rose from 10 percent in 2005 to 16 percent in 2009, according to a by the National Highway Traffic Safety Administration. And hands-free mobile phone use isn't resolving the problem.

Holding the phone may be while driving. This is according to a newly released report by the Governors Highway Safety Association, which covered 10 years of research. It noted that mobile phone use may increase the risk of crash. Even more worrisome, it suggested that there's "no conclusive evidence on whether hands-free cell phone use is less risky than hand-held use."

The study suggested that texting likely increases crash risk more than talking on a cell phone, and suggested that a texting ban should be considered as a countermeasure for all drivers--while a cell phone ban, including hands-free, should be considered for "novice drivers."

In fact, more than a decade ago Bluetooth offered the promise to allow users to keep hands-free, and this has only led to increased use in the car. Part of the problem could be that users actually feel safer if they're not holding the phone to their ears. Moreover, many states have banned the use of mobile phones while driving except if hands-free. This has likely sent a message that using the phone isn't a problem unless you're actually holding it.