From their site:
Join IHOP to celebrate National Pancake Day on Tuesday, February 12, 2008. From 7 a.m. to 10 p.m., we’ll give you one free short stack (three) of our famous buttermilk pancakes.* All we ask is that you consider making a donation to support local children’s hospitals through Children’s Miracle Network, or other local charities.
Disclaimer: There is a limit of one free short stack per guest. The offer is valid at participating restaurants for dine-in only while supplies last and is not valid with any other offer, special coupon or discount.
I wonder if I’ll get them this year.