If you are waiting for enjoy completely your multi-task in iPhone with your iPhone 3GS, iPhone 4, now you can because Skype just updated their app for iPhone and background VoIP ready to go.
It allow you running Skype in background and a notification will pop up when you have a call or a message. You also can sliding to direct answer the call as normal call.
Just click update and enjoy it right now if you are iPhone owners.
