Preordering of Street Fighter IV on Impulse now includes a bonus that wasn't listed when preorders began the other day, as they are now offering the same 10% discount announced today on Steam. Impulse is also now accepting preorders of Red Faction: Guerrilla, Volition's shooter sequel coming to Windows at some indeterminate future date. Those who preorder will get free copies of both Red Faction and Red Faction 2. Thanks Weaponeer.