Hi guys. So I am thinking about purchasing an unlocked iPhone to use with T-mobile. I currently have the "Fave 5" feature on my T-mobile phone. This allows me to call the set 5 people for free, regardless of the network they are on. My question is if I buy the iPhone and put my T-mobile SIM card in it, will I still be able to use the "Fave 5" feature. Because the iPhone interface is obviously different. On my T-mobile nokia right now, there is a wheel on the screen menu that allows me to cycle through the "Fave 5" numbers. Thanks in advance!