> I think it's clear that a phone isn't the final state for these interactions That isn't clear to me at all, although continuing to experiment is worthwhile.

> I think it's clear that a phone isn't the final state for these interactions That isn't clear to me at all, although continuing to experiment is worthwhile. "Battery powered computer which fits in a pocket, having a screen/speakers/radio/microphone/camera/vibrator" is a hard form factor to beat. There's a lot of room to improve the specifics of how they work, but I would bet on something recognizably similar being in widespread use hundreds of years from now, provided that industrial civilization continues. Voice-driven ambient computing will probably become more prominent than it is now, but that doesn't cover anything visual, so a device which can provide images on command will stay relevant. For something like a map, audio can only provide an inferior experience, and maps are one of the non-negotiable uses of a personal device, and likely to remain so.