Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal. Mike Sorrentino is a Senior Editor for Mobile, covering phones, ...

This little trick can be a lifesaver. Say you’re at a hotel, and they charge an arm and a leg for Wi-Fi per device. With Wi-Fi sharing, you pay for one and spread the love to all your gadgets. Or, if ...