I'm not trying to shit on this as a neat tool, but my phone is not the single place for all my data, and I find it considerably harder to manage. If I'm bringing my phone, an external keyboard, and a portable screen (and, presumably, a mouse) with me, it's not really a "single device", it's more like 4 devices that poorly imitate a laptop and don't offer as much functionality

Plus, when far from a homebase, some people are going to bring two laptops anyway so they can have twice the reliability of your average person.

Don't ask me how I know . . .