The iPhone 3 G doesn't have a front facing camera, therefore it cannot do video calls. The latest HTC, Samsung, iPhone 4 etc which do have a front facing camera can support video calls. It should just be a case of creating a Skype account, make sure you have a video call capable device and ensure you are connected as 'contacts.' Then whenever you are both online you can video call each other. - So yes, as far as I am aware it should just be a case for the PC of buy a webcam and microphone and off you go!