I would like to be able to update MYO cards using my phone when WiFi/phone service is unavailable (on an airplane, driving through a rural area on a roadtrip, etc).
We bring a bunch of cards on trips, MYO and store-bought, but inevitably my kids will ask for one that I didn’t load onto a card. It would be nice to be able to download my card library to my phone (in addition to their Yotos) beforehand so that they can just hand me a MYO card and I can use NFC to change the playlist connected to it.