The official release date for Mortal Kombat is April 19, 2011 (tomorrow). But it is not too late to take advantage of some deals. If you want something special, only 20,000 copies of The Kollector's Edition will be available, via Destructoid. Amazon has some free offers if you pre-order from them. Available for Playstaion 3 and Xbox 360.
Click the photo below to see the pre-order deals and pricing from Amazon.com.