Honestly, thanks for your post. It inspired me to actually download the app and i solved a bit of issues around my area today.
It's actually fun and it also helps other people and increase the quality of OSM overall. This could motivate me to also just go for a walk instead of hanging in front of my computer so again: thx for your post <3
I bought one, tried it out: only works while screen is on, also bad audio quality. I didn't even bought it online, but in a store. I want my jack back :(