Paraphrased from wiki:
Yondr makes mobile phone pouches with a proprietary lock and a device for unlocking them. It allows the host of a venue to prevent people from using their mobile phone or similar device while inside. People entering a space are required to lock their device inside a Yondr Pouch and take the pouch with their device in with them. They cannot use their device until they leave or only at a dedicated spot where they tap the pouch against a Yondr unlocking point. The product deters a variety of potential activities such as unofficial or unlicensed audio and video recording, photography, or the distractions of using a mobile device at events and venues such as music concerts, courts, schools, and nightclubs.
Interesting article about the product and its creator and creation.
Has anyone encountered it yet? How was your experience?
What are your thoughts on it?
I haven't encountered it yet but I know some musical artists are using it. Jack White, for example, is using it on his upcoming US tour.
As someone who likes to be unplugged when out and about, I think it sounds great. So many applications and a pretty simple concept.