Maybe I'm confused, but I thought iMessage/SMS was supposed to be smart enough to lump it all under one conversation with the same contact. My wife's iPhone 3GS seems to be working like this, but on my iPhone 4 it doesn't unless I specifically initiate an iMessage to her email. She can send me an iMessage to either my phone number or email and hers keeps them together. Both of our phones are set up to receive iMessages at our phone number and Apple ID email addresses. iMessage Caller ID is our Apple ID email on both -- two different emails, just to be clear. If I initiate an SMS, it will detect that she has iMessage and the text gets sent as such, but her reply to me shows up as a new text conversation. Of course, if I reply to her new message then it stays in the conversation. And if I specifically go into her contact and send a message to her email, it will stay in the conversation. But if I happen to open something like Dialvetica to text her, it uses her phone number and detects it as an iMessage, but separates the conversation. Her phone doesn't seems to have this problem. All old text messages and new iMessages get lumped together in the same conversation as if nothing changed. It just changed the color of the text bubbles to update when we started using iMessage. Mine thinks conversations to her phone number are different than conversations to her email. I have her listed as one contact in my address book with her numbers and emails. Why can't I get it to keep her conversations on my iPhone to remain together?