From the Arcade Fire fan site:
The National, whose new album, 'Boxer', is easily one of the year's best records, and whose past albums are amazing as well, will open the first part of the North American Tour:
05/01/07 Atlanta, GA Atlanta Civic Ctr. Theatre
05/02/07 Asheville, NC Thomas Wolfe Auditorium
05/04/07 Washington, DC DAR Constitution Hall
05/05/07 Upper Darby, PA Tower Theatre
05/07/07 New York, NY United Palace
05/08/07 New York, NY United Palace
05/09/07 New York, NY Radio City Music Hall
I'll be there on 5/1 in ATL in the tenth row!