It's super cool, but at the same time for many folks an iPad Mini with/without external keyboard would be a more adequate solution considering processing power.
If you make something that's obviously shoddy, nobody confuses it for a serious product. Nobody is telling grandma that her knitting isn't as practical as a waterproof jacket from J. Random Outdoorswear Company. Nobody is telling the electronics newbie that a blinking LED isn't actually of any use to anyone. Everybody has nothing but positive encouragement.
But if you start to make actually really good stuff, requiring an enormous amount of skill and experience, you instead get "cool, but actually not quite as good as the nearest commercial competitor".
If you're so good at your hobby that people are comparing you to the literal state of the art, you're doing something right.
This thing is great to show vision and usability, and I'm more excited by this than a lot of dead-end things I've seen presented as a bunch of requirements and if you're lucky, renderings made by a lot more than one person and 3 weeks.
And think about the software world, it's understood that framework X makes a great example but needs to be replaced by microservices Y, and also understood that people exist to make that happen.
It's not like grandma's knitting, but it could be something like MVP software to get a cofounder and an angel investor.
In the late 2000s (pre iPhone), it just so happens I was lucky enough to work for OQO -- the "Rolls-Royce of Handheld Computing". This project is a DIY attempt at building an OQO, and I'm IMPRESSED.
You must making pretty good stuff for someone like me, who did this professionally, to think "Oh, our product is obviously still better, but wow, this comes closer than I thought!"
Things have come a long way in 15 years!
Ignoring the fun DIY aspect, this project's main advantage would be:
- extensibility and modularity: hardware wise it could fit a PS2 port if it needed to, software wise you can put any OS that runs on arm.
- repairability and upgradability
- the actual physical keyboard. If your goal is to be typing at a CLI prompt 80% of the time, and you want it handheld, that's a pretty sweet form factor, better than a tablet with a flipping keyboard.