Interestingly, Google seems headed in the opposite direction. They've even released an app that lets users complete surveys in exchange for Google Play credit.

Interestingly, Google seems headed in the opposite direction. They've even released an app that lets users complete surveys in exchange for Google Play credit. https://play.google.com/store/apps/details?id=com.google.android.apps.paidtasks https://play.google.com/store/apps/details?id=com.google.and...