Interesting information: I checked a box that I bought last year. It shows the packaging date on the bottom, Feb 07 2011 @ 21:30 by XXX which makes sense since I bought it in March. I looked for an expiry date but found none on the box or packets. Perhaps you misinterpeted? Another google search said that the powder has roughly a 2 year shelf life @ 70*F.

FWIW,I think expiration dates are really a marketing gimick for the most part so that storekeepers keep only the freshest product on the shelf. "Best Before" would be a better interpetation. Milk would be a definite exemption for me and I won't drink it after it's date unless I wanted to get sick.