 The device was announced and unveiled on January 27 , 2010 at a media conference . On April 3 , 2010 , the Wi @-@ Fi variant of the device was released in the United States , followed by the release of the Wi @-@ Fi + Cellular variant on April 30 . On May 28 , it was released in Australia , Canada , France , Japan , Italy , Germany , Spain , Switzerland and the United Kingdom . 
