Besides Chat, Skype also does instant messaging and file transfer.
Users don't need to configure a firewall or router, or any other networking gear. The calls have a very good sound quality, while end-to-end encryption keeps one's information confidential. Skype uses the P2P (peer-to-peer) technology to connect users for online talk. Delivering improvements and enhanced compatibility with Snow Leopard, Skype version 2.8.0.722 also adds screen sharing (share what you’re seeing on your computer over a free call) and better sound and video.
A new version of Skype is available for Mac OS X users.
