You've done it again. "Wii Prove our Promise" and reveal nothing but a pair of new games. Sure there are a hell of a lot of playable games in Leipzig, but it kind of seems like you might be running short on time. We want a release date.
We (and by that I really mean you, Nintendo) need a release date. We need it to place pre-orders and to start setting aside money that might otherwise go towards other things (games on other platforms etc.) Without a release date many retailers won't take money down, or at least won't be very honest about it. Don't do it for me, do it for yourselves and keep the buzz going.
September 14th is your next and possibly last chance. Don't screw it up.