He pulled the ads in the last update, so he isn't getting anything anymore.
I really don't see the big deal, these silly games do well with the masses who own smart phones and then they move on to something else. For some reason sites like Touch Arcade made such a big deal out of it that in the process turned it into a bigger drama than it needed to be. Eli Hodapp (one of TA's site operators) loved it, but yet they didn't even review it. Probably because they would have given it a good review and the site's readers who seem to be mostly gamers (as opposed to the masses) would have flipped.
It's not just the sites who are making it a big deal. Now that the game has been pulled, phones with Flappy Birds installed are selling for big bucks on ebay.
This whole thing is baffling: the game's sudden rise to intense popularity months after release, the designer pulling the game and advertising, the mania ramping up after that.
Of course, this has extended the mania for this little game, but I'll be disappointed if the designer has some kind of a faux mea culpa and rereleases it "due to popular demand" or does so under a bigger publisher.