That was one direction I considered going. On one hand, i have pretty much pretty much everything up to the PS2 and GameCube that can run on my phone, but it would be awesome to have the option for some PS3 games. However, it is a bit of a mixed bag. Some games it can handle perfectly fine. Some of them I would absolutely love to have mobile. But there's also a few others that it's not quite there for. I want to say someone tried on the ROG Ally, and it did test a little bit better, so that would be an option as well.
But I also just don't know how often I would use it. Like I got a Switch when it came out, and I feel like I mostly use it docked at home. It's big, it's awkward trying to get it out of its case and get comfortable while on the bus. On the other hand it's a lot easier to just have a smaller controller I can slap on my phone.
But I haven't written it off yet. Because like I said, some games would be awesome to have. And a lot of the ports I would like to take with my that they put on the Switch tend to be downgraded visually, so it would look better on a portable PC instead.