I know that some companies have recently rolled out some new interstitial ad units that look very native to the phone. They are getting a great response.
Banner ads seem to be a thing of the past. I've heard manny people complaining about largely ineffective they've been. But some still find that they work just fine.
Do any of you who advertise on your apps find banners useless as well?
Or do think they work just fine and will continue to generate income for your app?