The US Version of New Super Mario Bros. has been pushed back to May 21st, a week later then was originally planned. The date comes from the new Mario Bros site which has been setup by Nintendo of America and can be found by here. What is strange is that game is set for release on a Sunday which is sure to fuel speculation of a possible DS Lite launch date. The Australian release of New Super Mario Bros is still set for June 8, 2006 just 3 weeks later. .