VoIP provider Vonage has just released a new Vonage Mobile app that will allow for free calling and texting between users who have it installed on their smartphones, as well as discounted calling rates to those who don't. It uses Wi-Fi, 3G or 4G data networks and is now available for iOS (free, iTunes) and Android (free, Android Market) devices. The app is meant for frequent travelers, or those who have friends or family abroad and want to use their phones to contact them.
