Is Nvidia about to have an iPhone moment? Nvidia releases an AI-based phone with an assistant you talk to, no other UI necessary. It could remain aware during calls like an available assistant so you can direct it to do follow up tasks, like check calendars, etc. It could completely change the paradigm and disrupt Apple's business model entirely.
Nothing in Nvidia’s past even hints at them being able to pull off half of what you wished for and consumers are not interested in an audio-only phone. There are just way too many things that work better with a screen (like pictures or games, also I like to read articles not listen to them).
The only think Nvidia has going for them is hardware and CUDA, I don’t even think they are very competent in the software department let alone consumer-facing software.