The highly popular app Waze has expanded its long list of features with a handy warning for drivers who go just a bit too fast. Starting out in only 20 countries, users of Waze will receive a warning if they start to exceed the speed limit. This could prove to be a life saver.

Once you've exceeded the speed limit, a visual warning will appear on your phone's screen displaying your current speed. Only until you slow down to legal speeds will the warning go away. Users can customize the warning to only display when going a certain amount over the speed limit, and it can be disabled entirely should you choose.

Person with PDA handheld device. (Photo credit: Wikipedia)

The Web 2.0 is happening all around us. Savvy business owners realize that their website not only needs to be browser ready, but that it should be mobile ready and optimized for different screen sizes. But even if you your site optimized for the mobile Web, should you still create a mobile app? Hint: The majority of mobile device users access the Web through apps.