We're actively exploring what people would want to do with tech like this right now. Docs should be much more specific on a few of those hopefully by tomorrow.
Right now, the idea is to let the user interact with a chat that simply allows you to chat with a model that can generate components and call developer-defined functions.
This could form a customer support "feature sink", allowing users to interact with features not provided on your website by generating them on-the-fly (think product comparisons etc). It could also be a complete replacement for frontends for internal tools, allowing devs to build fully-interactable apps with just their backend APIs.
Hope we're able to get to a place where this makes much sense more over the next couple days! Wanted to showcase what we're making.