Curious to what the premium suite is and how to tell if you have multi screen? I was watching a video earlier and clicked it and then was able to watch and use other apps.
Sent from my SGH-T999 using Android Central Forums
Seeing you are using a T999 which is T-Mobile, officially 4.1.1 is all there is. The International version with 4.1.2 has Premium Suite with the dual window. No US variant has the Premium Suite. It is rumored it may be coming to Verizon.