There's a lot of people waiting for their iPhone 4S unlock. Some of them bought locked devices and some of them simply use their devices outside the US so they need to pass the activation process. Those messages like "could not activate your iPhone" or "activation required" could piss off any iPhone 4S user. But now there's a solution for those who want to use their iPhone with any carrier in the world. The guys from Gevey Company, famous with their iPhone 4 unlock SIM cards such as Gevey SIM, Gevey Pro, Gevey Ultra and others have just developed X-SIM card that unlocks and activates iPhone 4S and allows it to work with any carrier and any SIM card. If you're locked with AT&T, Verizon, Sprint, O2, Orange, T-Mobile etc. - then this card is exactly for you. The video below demonstrates iPhone 4S iOS 5.1 Baseband 2.0.1 Unlock and Activation With X-SIM to use with any SIM card. It also explains all the errors one can get during using an iPhone 4S locked to a carrier. http://www.rebelalphaxsim.com claim:

X-SIM True Plug-and-Play iPhone 4S Unlock SIM Adapter without any setup, No need dial 112, no need to Cut your SIM, No cables No logs, No Apps, No JailBreak, Just insert and talk, Use any SIM card, without voiding your warranty, on any provider!. Supports iOS 5.1 and baseband 2.0.1. Works with ****Sprint(does not work in USA on 5.1 since there is no jailbreak for iOS 5.1 as yet but works in all other countries), AT&T, Verizon(does not work in USA on 5.1 since there is no jailbreak for iOS 5.1 as yet but works in all other countries) and other network carriers that distribute Apple iPhone 4S.

Is it hard to use? If you're familiar with previous unlocking solutions based on SIM Adapter insertion (any of Gevey unlocks) or if you can insert a SIM card into tray and then put it to your phone as usual, then you won't get any trouble with that. Seems like it's the easiest unlocking solutions available for iPhone 4S. Developers from Gevey are well experienced in making cards for unlocking iPhone 4 so there won't be much trouble and errors while using them. Tests show that it takes 30 to 50 secs to unlock and activate iPhone 4S. So if you are jealous for those guys with carrier unlocks and want to unlock and activate iPhone 4S iOS 5.1 Baseband 2.0.1 - you know what to do.