In case you didn't know, the first three digits of Pi are 3.14. Today's date just happens to be March (3) fourteenth (14): 3.14.2010. The real Pi day happened some four-hundred years ago in 1592 (hey, 100 years after Columbus sailed the ocean blue!)
My best is the first sixteen digits: 3.141592653589793. There are others that can do it to tens of thousands of places (where do they find the time?)
Interestingly enough, they really don't have pies here in Poland, and are quite befuddled when I try to explain them.
"See, pies aren't quite like cakes. They're more like torts or tarts. You have a crust and you fill it with stuff and then you can put some more crust on top. For example, a pizza is a pie."
Then I send them off thinking that apple pie or pumpkin pie (staples of American desert cuisine) are hideous concoctions of pizza dough, sauce and said apples/pumpkins. I need to work on my explanations a bit.
Also, Pi is pronounced "pee" here, much to my eternal humor.