Save the earth on your Apple gizmo
Last year's awesome "save Earth from evil aliens" simulator, XCOM: Enemy Unknown, will be finding its way onto Macs very soon. The port is being handled by Feral Interactive, who has ported a lot of good titles like Batman: Arkham City, Bioshock 2, Empire: Total War, and Borderlands.
The Mac version will be an elite edition of the game that includes all the downloadable content; we'll know more about pricing and availability when we get closer to launch. Hopefully it will be out on Steam, so people won't have to re-buy it to play on Mac.