Mac Rumors reports that Apple's latest beta version of iOS 4.1 has offered the strongest evidence yet that the company is planning to roll out FaceTime video calling functionality to future non-iPhone devices based on the iOS operating system

The first evidence for email address compatibility with FaceTime was unearthed last month, with alleged screenshots showing settings offering the option to associate email addresses with the FaceTime functionality.

  Apple Adds Email-Based FaceTime Support in iOS 4.1 Beta 3