Kotaku has a statement from Square Enix on GameStop's removal of OnLive coupons from the retail Windows edition of Deus Ex: Human Revolution, Eidos Montreal's action/RPG prequel. Here's word on the situation from the game's publisher:

"As part of Deus Ex: Human Revolution's boxed offering on PC, Square Enix included a third party coupon", says a statement released by the publisher. "GameStop was not made aware of this inclusion and Square Enix respects the right of GameStop to have final say over the contents of products it sells and to adjust them where they see fit in accordance with their policies."