I had high hopes for the project, but over the course of years it still never turned into something that even an open source masochist like myself could really consider a daily driver. Phone calls, a halfway responsive browser, and a camera that's no worse than a 2008 Razr and I'd be happy... too bad!
The unresponsiveness of the browser seems all down to the very underpowerered A64 processor plus slow memory. With those hardware constraints, I'm not sure the community could have come up with any solution.
That said, there's plenty of other things that could be used for: a wall mounted control panel for your smart home, retro game console, security camera, asset tracker, etc.
Don't just leave them to rot in a drawer forever - put them up on ebay (or craigslist or r/hardwareswap, or whatever)!