Yeah I see several potential issues. You need to have a good gaming pc + a good internet connection with decent upload speeds. The question is also, if a guy that owns a good gaming pc would be really interested in putting it into service (which would mean, he can't play during that time). I wonder how much coins you get in return for that service.

As I understand, the developers promise that the console will be able to play on PC and smart TV. Apparently the console will also be included as part of the system

On October 12-13, we held a series of private meetings at Slush. Slush is a student-driven non-profit movement originally founded to change attitudes towards entrepreneurship. Also this month we will be able to meet at the following events:

Oct 18 - Blockchain Center (the largest in the world)
Oct 19 - Sydney, Australia. Fintech Investors Dinner
Oct 20 - Sydney, Australia
Oct 21 - Malaysia Japan TBC
Oct 23 - Hong Kong FinTech Week http://fintechweek.hk/
Oct 24 - Dubai, UAE, World Blockchain Summit https://www.dubai.worldblockchainsummit.com/
Oct 24 - Las Vegas, NV, Coinagenda Global - Bitcoin & Digital Currency Investors Conference http://coinagenda.com/
Oct 26 - Indonesia, BlockBali http://www.blackarrowconferences.com/
Oct 28 - Gibraltar, ICO PITCH GIBRALTAR http://d10e.biz/gibraltar-2017/
Oct 28 - Australia Melbourne, Intersekt Fintech Festival

- The events, at which we'll give a presentation, will be announced specifically!

This, a good website (which they absolutely have) and a celeb and the thing is done!!
Wish you good luck guys!!

Well yes. The difference is that in this case, you need actually also a good CPU + HDD space for the games. Putting just some graphics card together, like you do in mining, won't work here. Basically you buy a ONE gaming pc and let someone else control it. You can't really build rigs for gaming (well you can but it is surely not that easy like for mining). Besides, running several gaming pc would also don't work out for most of the people just because of the internet connection upstream limitations. Most internet providers offer decent downstream connections, but only 1/10 of that speed upstream.
That's why I wonder how much coins you will get for providing gaming power. 

Miners have computers unsuitable for playing on them. In addition to a heap of powerful video cards there is nothing. Usually the processor is weak, the HDD is slow (or there is none at all, and the OS starts from the flash drive), RAM is small.

It is so important to have fast Internet and that the miners were not far from you

https://www.youtube.com/watch?v=yfEbfqFx-j4 a video of a guy playing gta V, on his weak computer, and then plays through playkey for comparison

Or you can just google playkey gameplay for other videos.

Sad to hear, it would have been a great alternative source of income for GPU miners.

But it depends on the game. Games from a few years ago were more GPU demanding. Now there are better GPUs but more recent games started to be bottlenecked by storage, CPU and RAM. That trend may continue with the rising popularity and availability of multicore processors, especially since Ryzen.

Don't forget for whom this service is ... for people with crappy PCs that want to play new games with max graphic settings :-) So most of the customers will use a lot of hardware resources.