I just got my Ipod Touch Generation 4 today. I do not have wifi but I was under the impression I wouldn't need it to play games that were free. However it wanted a Apple ID and password so I used my computer to sign up for one. I entered it in my Ipod Touch's Game Center and pushed okay and it says 'You are not connected to the Internet. Online functionality is not available.' and then proceeds to a never ending loading screen. Does this mean because I don't have wifi that my Ipod Touch is in general useless for games and most likely music as well?