Much like the company did when it suddenly dropped the price
of its original iPhone, Apple is giving $100 back to those who purchased an iPad up to a fortnight before the March 2nd unveiling of the iPad 2.
If our math is correct, that makes February 16th the cutoff date, and it's being reported that those in the US will see $100 placed back on their credit card, while those overseas will get £100 / €100 back in their pocket. If you've suddenly found yourself in this pool, you'll need to head back to a brick-and-mortar location with your receipt to get the refund processed, or if you ordered online, you'll need to call Apple's 1-800 number and use your smoothest late-night voice when asking nicely for your Benjamin back. Godspeed.