It would be nice to have a couple of stickers with the Nintendo logo. (Kinda like what Apple does). I'd gladly put one of the stickers next to the Apple one on my car.
Pre orders should get a "Special edition" sticker or a poster or a free download or something to that effect.
But i dont think Nintendo needs to resort to crappy marketing tactics like Sony/Microsoft, who use prerendered graphics, exagerated numbers, and purposely undersupply stores to claim a "sellout" when there wernt many to go around anywhere.
Nintendo needs to have an advertizing strategy in all territories ala the "Think Different" campaign...or even the first few DS ads. Then, team up with companies like McDonalds to promote the console with free giveaways like games, controllers,etc..... ensure logistics can deliver consoles to high demand areas (urban centers). deliver preorders on time....and have a healthy library in as many retail outlets (Walmart, Kmart, EB, etc) as possible.
A healthy supply should be maintained to ensure those who want one get one, or they could just as easily get a PS3 or XB360 if they wanted to.
As far as marketing....KISS applies.....keep it simple stupid.
Cheers