I have an iPhone 4S. My friend just got one too. It's his first iPhone. He kept his cell phone number. We're both on Verizon if that matters. Prior to us getting iPhones, we would text all the time. When I got my iPhone, no problems texting. But when he got his iPhone, he disappeared for a few days. I figured he was just busy. Turns out, his texts were not getting thru to my phone. After a few days I sent him a message and noticed it was blue, not green. I didn't know he already had his iPhone. And that night we realized the texts weren't going thru. Now my friend is confused because he has two iMessage conversations going on with me. One he thinks is to my cell phone number though those messages never get to me. The other is to my email address (which is the same as my Apple ID). How do we clean this up? He's able to call me on his phone. But he seems to be messaging me via my Apple ID instead of my cell phone number. And he doesn't want two separate conversation threads for me in his iMessage. Any ideas?