Samsung has put out some very appealing hardware in recent times. I won't be surprised if they pressurize other PC makers just like they did in case of android
I really had high hopes for Vizio breaking into the PC market. I've had one of their thin and lights for about a year now, and have been very, very happy with it, but I'm not sure they've sold well enough to have an actual impact on the market.
It's easily the best-built PC I've ever owned; in fact, in terms of build quality, I'd rank it above the pre-unibody Macbook Pro I used to have. Only knock I have against it is the mediocre touchpad they used in the first run of machines, but it's my understanding that they're using Synaptic now.