According to the Barnes and Noble website, the DS Lite will be launching June 1st in North America. I'm not exactly sure if this is true or not, and Nintendo has not yet confirmed it, but this does sound like a good date. Gamestop.com also has listed some DS Lite accessories to be launched on June 1st, so this could be the exact date of the DS Lite launch.

I'll keep you all posted!

[via gonintendo.com]