Ten years ago we called this the Droid Razr Lapdock 100
Same cumbersome cables to connect the Pi, same...everything. Probably a lower quality screen.
It was a satisfying repurposing of a newly surplused item when they showed up on eBay en mass, but turned out to be little more than a fun weekend project. There simply wasn't a practical use case until the R-Pi nano W came along. Even then, it was just a laptop. I ended up using mine for lugging out to headless servers in broom closets, IIR, but even that required an additional video adapter dongle.
There was that one issue with one of the power-good signal lines that required the most minor of hacks, but yeah - pretty much the same exact thing.