What they don't tell you (Samsung included, and they don't even have it all yet until updated) is for all these features it is usually local apps/video. The semi-transparent video isn't that great and popup would have been better. I disabled the popup SMS stuff too as it seemed to double my notifications and didn't go away when read in the standard app or notification.
The only thing I got to see/use on my Note 2 when I had it was Popup Browser which I actually thought was more useful than all the other stuff. I thought the LGOG was supposed to have more popup stuff than SMS, but I haven't seen it yet. Popup Browser would be great.