In addition to Banner ads and Interstitial ads, Admob provides a kind of ads called the Rewarded Video Ads. What is so special about Rewarded Video Ads? Can't we just attach an AdOpen event handler to an ordinary Banner or Interstitial Video ad, and reward the players there? Is this allowed by Google?
Additionally, why is the status of my Chartboost source 'pending' in Admob mediation? I have already set up my account, ads and the campaign in Chartboost, and waited for 6 hours. How long do I have to wait? Must I install the Chartboost SDK first in Unity 5.3?