The app adds Skype calling and instant messaging to any second generation iPod touch with a compatible headset and microphone.
"Skype for iPhone is an experience that offers the same simplicity, ease-of-use and quality our users have come to expect from Skype, combined with an elegance of design and richness so loved by Apple's many customers worldwide,"said Scott Durchslag, chief operating officer Skype.
The application includes: free Skype-to-Skype calls from any Wi-Fi zone to other Skype users worldwide, call landline or mobile phones at Skype's rates from any Wi-Fi zone.
Send/receive instant messages to/from individuals or groups via 3G, Wi-Fi, GPRS or EDGE, receive calls to a personal online number on Skype and see when Skype contacts are online/available to IM or talk.