The way I see it, there's really no point in reveling all the details yet; there's really no harm in doing it or not doing it now; the details matter to us but not the mainstream audience.
If my work experience has taught me something (I'm a software developer but I've work on marketing related projects) is that people have extremely short memory in things they are not passionate about or only mildly interested in.
Think about it this way, one random guy watches the trailer and says: "hey this is really cool!" and then in the next couple of days he forgets about it completely until launch or sees another add on TV or whatever; so, whenever that random guy sees a new trailer (most likely near lunch) or an add he will say: "oh! that's the cool tablet I saw a few months back!" and that has more impact than watching it for the first time.
The point I'm trying to make is that slowly showing your product to the general public has more impact in the long run than doing it the first time near launch; this creates hype without the people really knowing it, is basically a marketing strategy in a way. And for the general public (not us gaming forum dwellers), all this little details about specs, battery life, games, etc don't matter much; they matter close to launch but certainly not now.
Everyone is thinking about in the mindset of us "gamers", because we saw the trailer a few days back and we want to know everything about it now, because for most of us gaming is our main hobby; but for the general public (the ones that truly matter really), this trailer does what Nintendo wants it to do, it creates expectation, it creates a positive image and when Nintendo shows more info near launch, if it is still good as the first trailer, then people will jump more easily.
However, the most important thing is how good marketing and word of mouth is near launch, that's what makes or breaks a system.
Nintendo and PC gamer
