Sorry if a similar thread already exists. I just wanted to say that the Gevey Ultra S for iPhone 4S works as advertised and I recommend buying it. The only disappointing part is the inability to update the firmware and retain the unlock, but that was also advertised. To anyone who buys it, you'll need to install your carriers APN (can be found from 3rd party websites if needed) to get 3G working, but otherwise it is plug and play. Also, I've found activating FaceTime is easier than activating iMessage and activating one will activate the other. The only problem I have so far is that there is no option for tethering (any thoughts macrumors members?) and there is the occasional reminder it is an American phone (use of cellular instead of mobile and occasional American number formatting) throughout the OS. Hope that helps anyone looking at buying it. Just wait for the price to come down a bit more before you do.. It's currently at $39.99 down from $59.99 and will probably go down some more.