Koichi Hayashida, the director of Super Mario 3D Land, will be speaking at a GDC session, “Thinking in 3D: The Development of Super Mario 3D Land”. Don’t expect any big reveals, but if you’re interested in behind-the-scenes sort of stuff, Nintendo will be tweeting about the panel, so you may like to follow along. You can click here to find Nintendo on Twitter. It starts at 3:30 PM PT, which I believe is in less than 30 minutes.
Update: It has just been tweeted that, “We’re about to kick off our #SuperMario3D presentation at #GDC. Stay tuned for our live tweets!”