Skype now has video chat on iPhone also use to make calls on iPad and iPod.

You can now do video calls over wifi and 3G with Skype on iPhone. You can use all the Skype to Skype functions free.

So now you are not limited to FaceTime and wifi. Also use Skype for cheap calls and your instant messages anywhere you go.

Don't forget you can also use Skype on iPad and iPod touch to make cheap phone calls and instant messages to any.

http://www.skype.com/intl/en-us/get-skype/on-your-mobile/download/iphone-for-skype/