What are you guys talking about lol. I feel like I'm missing something here. When you text someone on an iphone, it does text them normally. There's no app changing needed. It's all built into the SMS app. It just detects if the other person is using an iOS device, if they are then it will use apples servers and you can text pics/vids/etc to your hearts desire and get message read confirmations and whatever else. If they are not using an iOS device it will just text them normally.
It's all in one app. It's all automatic. I've never had this problem you describe faceless. You're describing a very rare specific situation which I've honestly seen not a single person complain about when comparing it to the benefits. And that's assuming I even understand what you're saying, which I'm not sure I do. If I text someone using an iOS device it will use imessage. If they switch phones or something to android it will be sent as SMS from that point on. Stop kidding yourselves, if google did it before RIM or Apple it would be one of androids top features lol.