Seems like you can now do display on 50onred: Introducing Display Advertising on Traffic Platform! - 50onRed
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: this_feature_currently_requires_accessing_site_using_safari
So far, I have not had a very good experience with the new display feature. I wish they could make it immune to the pop bids. If you are direct linking to an affiliate offer, chances are someone else is bidding on a string from the affiliate link and steals your traffic.