Ten days ago, Google's question and answer feature in the local results went live on Android devices. Well, now it seems to be rolling out to all mobile browsers, including iOS Safari.
Sergey Alakov spotted it and posted about it on Twitter and his blog. I was able to replicate it on my iPhone for my company:
When you click in the box to leave a question, this pops up:
I still do not see a way within the Google My Business console to respond to questions asked here.
Forum discussion at Twitter.