Att just launched advanced messaging and video calls, but not on iPhone. I think we don't need it, we have enough bugs already. 
Also we have imessages and FaceTime.
http://about.att.com/newsroom/video_calling_and_advanced_messaging.html
BTW: did you try to send sms on att with 9.1 beta3 with Att NumberSync? - don't even try it is not working. I know this is beta.
I don't know why, but this phrase follows me today: "One step forward, two steps back. "
or... " you miss slow Youtube, Binge ON!!!!!!!" - t-mo also has advanced sms and video calls, but in some spots , where their network available and again only on Android.
Also we have imessages and FaceTime.http://about.att.com/newsroom/video_calling_and_advanced_messaging.html
BTW: did you try to send sms on att with 9.1 beta3 with Att NumberSync? - don't even try it is not working. I know this is beta.
I don't know why, but this phrase follows me today: "One step forward, two steps back. "
or... " you miss slow Youtube, Binge ON!!!!!!!" - t-mo also has advanced sms and video calls, but in some spots , where their network available and again only on Android.