I hope you are right! I've been working hard for this so... I hope I can get in haha.So its 128 per age division, my guess is the juniors will be more populated and the seniors will have less people, so if you're part of the senior division i wouldn't get to disheartened, good luck to the juniors though.
Oh and I don't know if this was really solved but the matches will be on a Special DS Lite...
Each match during the elimination rounds is untimed, though players are expected to maintain a lively pace during game play. Matches will be played using special Nintendo DS Lite systems, located at the event.
Although you may be able to see other teams, weren't these matches played on TV's in the Japan Tournaments?