Nintendo has confirmed that it will begin selling its official one, only for Japan's Switch Lite Flip Cover in the US next month, with a release date set for January 9th. This is good news as it is a great product and I would recommend picking one up when it comes out if you are using a newer, smaller switch. It does what I want it to do to protect the screen by adding as little bulk as possible.
The Flip Cover is a lightweight case in which the switch closes, with a fabric coating and a magnetically fastening lid. Also comes with a plastic screen protector. I've been using the case for a few weeks now, as it came out in Japan earlier this month along with Pokémon Sword and Shield limited edition Switch Lite, which I decided to wait because, well, look at those pink and blue buttons.
Switch Lite is intended to be a more portable version of the Switch, but it is not that the is much smaller than the regular model. The Lite is still a console that you will almost always need to carry in your bag. That's the best – I don't think I could play Fire Emblem: Three Houses if the font size shrinks a lot. But the overall size of the Switch-plus-case combination drops so dramatically with the Flip Cover that it makes a huge difference to the portability of the system.
In particular, Nintendo was able to make the box much thinner by covering the analog sticks with two slightly raised bumps instead of allowing them to balloon the size of the entire case. Here's how it compares to the official Nintendo case I received with my original Switch when it launched in March 2017:
The result is that Switch Lite is now something I can just throw in my bag without thinking, not the bulky widget I would want to take with me unless I was sure I would really use it.
Fortunately, it's easy to switch Switch Lite in and out of the box, but you can still play on the system with the lid open and open, if that proves more convenient. It doesn't fold back completely – it just hangs down at a 90-degree angle without interrupting. There is also a disconnect from the USB-C port, so you don't have to remove the box to charge the switch.
I don't know why Nintendo wasn't ready for Flip Cover for the launch of Switch Lite and it is available in more regions because I think it's an integral part of the product, as Smart Cover was when Apple first introduced it for the iPad. My only complaint is not actually locking and unlocking the switch itself, like the iPad Smart Cover, which would be nice.
However, at $ 39.99 I would recommend this to almost anyone. The meaning of Switch Lite is portability, so you'll probably want a case, and that's the best I can think of.