Why do you want to combine your tablet and phone in one device? IMO - if you are going to use it to watch movies, nothing beats a bigger screen. If you want to read webpages and magazines without constantly zooming in and out, you need a tablet sized screen. Even a Galaxy Note 2 is not quite big enough to read text without squinting. Depends on how good your eyes are, though
I can see why people like the GN2, but for me I would rather carry a phone and a tablet, because I use them for different things and don't see the attraction of carrying a phone that creates a huge bulge in my pocket with a screen which is still not as good as a tablet.
Don't forget you can tether your tablet to your phone, and Android tablets are ridiculously cheap.