Steam has made its own hand held game console. It can be used as a handheld or docked to a tv like the Nintendo Switch. Honestly, this looks like a solid hand held. Everyone that does PC gaming has a steam account and most likely alot of games already in their library. 
There are three versions: $399, $529 & $649 depending on the internal storage. Its shipping December of 2021.
https://www.steamdeck.com/en/?snr=1_4_4__118
The hardware looks great too:
https://www.steamdeck.com/en/hardware
 

The new PlayStation 4 firmware update will include external HHD support for game installation. Finally. I honestly didn't realize the original PS4s even had USB 3. They are also finally adding custom wallpapers via screenshots. About damn time. The wallpapers in the online store are complete garbage. I'd still prefer to use my own .jpg files like on the PS3, but modders used that feature as a way to hack the system which is why we never got the functionality in PS4. Using a screenshot is completely fine with me.
http://blog.us.playstation.com/2017/02/03/ps4-system-software-update-4-50-features-detailed/

I bet all it'll do is turn off all the background apps that Windows 10 loves to re-enable after random windows updates.
https://www.engadget.com/2017/01/14/windows-10-game-mode-is-near/

Nvidia is launching an online game streaming service called GeForce NOW.
I'm going to quote myself here from another topic:
With Playstation having it's own streaming service and now Nvidia making it's own service, having to own physical consoles and PCs specifically for gaming might come to an end within our lifetimes.
The downside to the Nvidia service is the cost. I've been seeing the numbers "$25 per 20 hours of gaming" floating around alot. If so, thats a hell of an expense for now.
Source: http://www.geforce.com/whats-new/articles/geforce-now-for-mac-and-pc-announced-at-ces-2017