I find it frustrating to not know anything about other aspects of this new platform. I'd very much like to know what processors at what speed will be in, amount of RAM, resolution etc. That's the interesting stuff, and if it were Microsoft or Sony or Sega or Apple or whoever doing this, we'd already know.
I'm very skeptic about the utility of the 3D screen, though it obviously is the key to selling the device to the masses. To me, Nintendo seems to have a long history of including features of dubious quality and/or long-term relevance. The microphone in the DS, the camera in the DSi, and we've just brought up the speaker in the Wiimote in another thread. All of those are offensively cheap implementations of an otherwise risky feature inclusion. Checkboxes. And even if they helped sell you the system in the first place, none of those features is relevant for software anymore.
Beyond the wave of launch titles and wild third-party experiments in the first year, I haven't even see the touch screen as a big help anymore. Of course it enables a few key titles, and still does, so that's probably an issue of personal needs diverging across the userbase.
Not to digress too much, but this is the track record I'm seeing. If the 3D feature ends up unused after a short honeymoon, I would not be surprised at all.