The Yahoo! Messenger app for iOS has been updated to allow you to make voice and video calls to anyone in your contacts list. You can call them on their iPad, mobile device, or PC for free, or make low-cost international calls with Yahoo! Phone Out to landline or cellular phones. You can make video calls if you have a camera-equipped iPod touch, iPhone 3GS/4, or iPad 2. The Yahoo! Messenger app is designed for both iPhone and iPad, and it is free in the iTunes app store.