I'm super excited about the Index. All the time, I feel like I go "oh, I need to buy this thing" or "I should message that person about this" but I'm in the middle of a task and then I forget. (Or I have to get out my phone or a notepad to write it down - the phone is distracting and the notepad needs to be synced manually later, which I won't do.) I think my main use case is probably going to be adding stuff to my grocery list while I'm cooking, but I'm also excited about the webhooks integrations - I can pipe my idle while-driving questions to an agent and read the report later, for example. Or maybe I'll connect it to home assistant - "It's cold, turn down the AC please" or "hey can you play some music" without having to break focus. If this all works alright, I'm thinking about figuring out audio-out, so I can ask "what's on my calendar for tomorrow" and get a verbal answer. (Or maybe, putting this+todo lists on e-ink displays in physical space.)
I think the reason this is so exciting to me is that it's a way to interact with technology that's a lot less "evil" feeling. I am at my best when I'm not looking at screens all day, and the index provides an off-ramp that can potentially move several common workflows off those screens. I think even on my technology-off days, using the ring would still be fine. It also looks cool, and speaking into a ring to make things happen is much more aesthetically pleasing to me than "ok google." I really think you can't discount the cool factor here.