Cool...but not a winner IMHO
I think what Samsung is doing from a concept point of view is great.... providing an experience with focus in entertainment. But I don't think they have a winner here.
First, the concept isn't new, Google, Apple and Microsoft have been providing this already (many micro PCs can be easilly connected to your TV and you'll have a full blown PC avaiable, add some apps to it and you're good to do)
I like the idea of everything in a nice package and it being touch... but do you think folks will sit around in a room around an 18 inch screen? This is where I think the draw back will be (given it'll probablly have a price tag that's not so attractive).
Also, the fact that it's running android is another concern on my end.... I can buy a Chromecast for little to nothing and have the same apps that this device will probably provide.
I also think that this concept is more something that should be aimed at embedding into TVs (is there today, but still clunky).