Steps for getting group text with handcent to work on AT&T note 2
1 . download handcent
2. From main conversation list view, hit your left touch key, bringing up a menu.
3. Select settings, then application settings.
4. Scroll down and select thread group conversation.
5. Hit your right touch key to go back 1 screen, and click on send message settings.
6. Select send as split threads,
7. Hit your right touch key to go back 1 screen, and click on receive message settings.
8. Select auto retrieve, roaming auto retrieve, and auto download.
I set handcent as my default messaging app initially, then within my stock messaging app, set that back to the default messaging app. I use handcent only for group texting. It seems to lag a bit with large groups or if you have a lot of other stuff running. Also unsure if the roaming auto retrieve is necessary, but that is what I have set and it works.
Reboot after updating settings and feel free to hit me up with any questions. Honestly no clue how I figured this out, just a lot of trial and error while taking some good poops. Absurd we have to do this to group text.