Cost: Free
Call, video call and instant message anyone else on Skype for free with Skype for your iPhone or iPod touch.
Skype connects individuals across the world from a device. It can be used for many things from international projects on weather, mega-cities, and world populations, to classroom exchanges on earthquakes, culture and language, to helping deaf children communicate, teaching English to Haitian children, connecting students with experts from lawyers and authors, survival experts, paleoanthropologists, and other inspirational guest speakers on global issues such as peace and the importance of intercultural cooperation.