This doesn't help the OP, but make sure your PHONE NUMBER is in your passport. I stapled my business card to page 4 which requests your contact information, but not your phone number!

OP, the same thing happened to me on a flight from YYZ-ORD. I had pulled out my passport for ID to board the aircraft, then somehow managed to leave it on my seat as I was getting settled in (and subsequently when I left the aircraft). AC called me on my cell phone that evening (hadn't even realized the passport was missing) and I picked it up at the airport before I returned home the next day.