You won't believe this! Raven Software's Manveer Heir has posted a message on his Twitter stating that if Wolfenstein outsells Madden 10 in the month of August, he'll pay for your copy of Wolfenstein. However, in order to receive your money back, you'll need to keep your copy of the receipt. (thanks GamesCenterOnline)
Oh well. If Wolfenstein turns out to be a decent game, I will personally buy myself a copy.