Interstitial ads are annoying on desktop web browsers, but they're much more intrusive on handheld devices like iPhones. I have decided not to click through such ads on the iPhone, and to bail when I come across them, even when this means not reading content I want.

This is in the (likely vain) hope of convincing the people who control those websites that handheld users (at least) won't put up with that garbage.

I encourage you to join the boycott! Maybe we can get half a dozen people and really turn some heads, just like the Alice's Restaurant Anti-Massacre Movement.