iPhone developmemt group,iPhoneislam have released FaceIt which can enable FaceTime calling option on iPhone 3GS.The only added functionality this cydia app appears to give iPhone 3GS owners is the ability to accept FaceTime calls from an iPhone 4, iPod touch 4G, or Mac.
This tweak is available now on Cydia for free. All you have to do is to add http://apps.iphoneislam.com as repository in Cydia, and then search for FaceIt-3GS to install it. Once installed, reboot your iPhone 3GS and navigate to Settings –> Phone and turn on the toggle for FaceTime.
As you can see in the video installation of FaceIt 3GS is easy and simple. You will, of course, need to have a jailbroken iPhone to install it.
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