Finally Skype has released an official Skype client for iPhone . iPhone users can now call their friends /family members in a lowest possible rates . Skype for iPhone is free application as we expected . Skype to Skype to call is absolutely free , provided that you have a compatible data plan .Skype has also revealed few attractive tariff rates for Skype calls to landlines/mobile phones . Download Skype for iPhone here .

Skype for iPhone features :

Sign into Skype via 3G , GPRS ,WiFi  and call your friends on Skype friends free of charge .
Skype for iPhone to mobile /landline plans are available on pay as you go and unlimited with fare usage policy .
Chat with your Skype friends .

More details are  available here .

You can download Skype for iPhone via iTunes with this link.