I can't even begin to imagine what the iPhone might be or do in 10-20 years. Will we even use phones by then? I suppose we probably will. Will Apple stay in the phone business that long? I can't think of any product that has made it to version 20 and been named as such. Cars just keep the same base name year after year. A Corvette is a Corvette is a Corvette (although there was the Stingray). In fact, cars are one of the only things I can think of where the successful model's names endure. Tech products rarely seem to make it past version 3 or 4. It doesn't seem very Apple like for them to still be adding digits to the iPhone name after 20 years. I think eventually they'll just start calling it iPhone. Your predictions?