Windows Phone Minute: Custom Focusing

Make the most of your Windows Phone 8 and get in touch with your friends and family with just a single touch. Learn all about the very cool "Groups" feature...right now...in one minute.
Useful
interesting series
But such (first) service is too short
This looks nice, but it does not really work.
Here is an example that shows why. (Me texting my brothers, David and Nate):
Me to David and Nate: Can we all meet for lunch tomorrow @ 12:00?
David responds to everyone: I can do it at 11:30 does that work for everyone?
Me to David: Sounds good
Nate to David and Me: Vaccano, can you do that?
The problem here is that Windows Phone sends responses to group messages as a direct message. So to keep up a group conversation, I have to constantly switch screens between my Group responses and the individual responses of those I am talking to.
I hate to say this, but my iPhone could keep a group conversations all in the same screen/thread.
cool
@Vaccano: Isn't that what Rooms are for?