iOS 4.1 Beta 3, the latest beta version of Apple’s upcoming software update, has a new feature that allows for FaceTime calls to be associated with an email address instead of a phone number. Mac Rumors reports that in the beta’s version of the Contacts application, the software gives you the option of connecting the call via a cell phone number or an email address. Notably, this addition suggests that iOS 4.1 will be expected to support…