Here's how it's explained in the email I received from Brian, the developer's marketing guy:
If ever there was a perfect fit for our product -- your site is it! I'm working with AvatarLabs to promote a hilarious new iPhone App -- the Poo Log! Based on the best-selling book, What's Your Poo Telling You?, the Poo Log has everything you need for that special time -- a digital timer, journal, graphs, medically accurate info and even quizzes about fascinating poo facts."
I've always felt intense jealousy towards What's Your Poo Telling You?, of course, for the same reason I never read The Big Necessity: their publishers promoted those books far better than my publisher promoted mine [1]. But WYPTL was a genuinely good book, and now they have a genuinely useful iPhone app -- that is, if you're the kind of person who wants to track their movements. Which I suspect most of you are.
You can learn more about the app here [2]. I don't have a fancy phone, so I can't download it and test it out. Somebody let us know how it works!