Apple has issued an official apology for allowing the application Baby Shaker onto the App Store. “We sincerely apologize for this mistake,” Apple spokeswoman Natalie Kerris said in a statement, adding that the game was “deeply offensive” and should not have been approved for sale. Appearing yesterday on the App Store, Baby Shaker urged users to stop the crying of a baby pictured on screen by shaking the iPhone or iPod touch,…