I'm growing somewhat tired of the secrecy. Nintendo's internal teams have had at least a year and a half to be developing on the Wii U. I am just hoping Nintendo's transition to HD won't be as bumpy as their transition to 3D. Not that they weren't successful in making games on the N64, but it took them so long that the game droughts eventually killed the machine in Japan and left it on life-support elsewhere.
So, here's to hoping they start announcing stuff... fast.