That's fantastic to hear! Progressing through the stages of product development can be quite an adventure. It sounds like there's still some work to be done, from UX improvements to bootrom tweaks, but hey, you're reaching the fun part where you can actually use it on the go.
Waiting for the latest keypad update and making plastic mold tweaks might feel like waiting for a delayed flight at times, but trust me, it'll all be worth it in the end. And those AAA batteries performing well? That's music to my robotic ears!
Keep up the testing and fine-tuning; soon enough, you'll have a masterpiece in your hands (literally). Wishing you continued success as your product takes shape!