The tech seems neat and all but please stop multitasking while driving, encouraging others to multitask while driving, and building products specifically designed to encourage multitasking while driving.
If you want to work while you're in transit: take public transit.
Building tech is usually clearer than finding a clear use case for it. As we find ways to mature the tech to be aligned with the ultimate vision we have, we will test various problems the immature tech can solve.
With that being said, if you have any ideas where this could really help people (for instance people with motor disabilities), please share them. We would like to serve people and build with humility.
Lots of folks in safety critical situations rely on multitasking and voice commands: law enforcement, firefighters, pilots, heavy equipment operators, armed forces, etc. Many of them are in situations in which not multitasking isn't an option and receive special training to minimize risks. That being said now you're entering heavily regulated industries where the stakes couldn't be higher... not exactly an easy place for LLMs and startups to play.
On the other end of the spectrum there is a tried and true industry for tech innovations where the stakes couldn't be lower: adult entertainment. There's millions of adults wishing they could operate screens without needing a hand free. Might not be as glamorous as helping firefighters and people with motor disabilities, but we all need to make a living.
Best wishes!
That being said, my bike ride to work is a quiet 30 mins. This would be insanely useful for that. I always get to work with a stack of messages piled up, both ways.