Simplify the following text for a Grade 6 native English-speaking person.
Original: The device was released in Japan on February 26 , 2011 , Europe on March 25 , 2011 , North America on March 27 , 2011 and Australia on March 31 , 2011 .
Simplified: It was released in Japan on February 26 , 2011 and March 27 , 2011 in the United States .