While only about 10% of my visitors come browsing from their iPhones, they account for a full third of my Adsense clicks. I'm pretty sure these are accidental clicks resulting from iPhone users tapping to zoom and pan on their browsers.

My eCPM has steadily gone down over the months and I attribute this to Smartpricing from these accidental clicks.

I'm going to block these users or redirecting them to an Adsense-free version of the site. Presumably my EPC and eCPM should slowly come back up - but I'll only have a third of the earlier clicks than before, so it won't bring earnings back up. But it's still the best thing to do.

Has someone fixed a major accidental clicks issue and seen Smartpricing being applied less and less over time? How long did it take for EPC and eCPM to come back up to respectable levels?