All this talk about ninjas and NDAs could warrant a small update. From the abridged version of the NDA:
4. Confidential Information. "Confidential Information" means information provided to Company by Nintendo, or a third party under a confidentiality obligation
to Nintendo, in oral, demonstrative, written, graphic or machine-readable form, relating to Nintendo products, services or business, including but not limited to: (a)
information, know-how, techniques, methods, concepts, ideas, development tools or kits, emulator boards, specifications, prototypes, or trade secrets; (b) patent
applications and information related thereto; (c) business, marketing, customer or sales plans, strategy or information; (d) development, design, operation, or
manufacturing information; (e) information received from others that Nintendo is obligated to keep confidential; (f) passwords, access or security codes necessary to
access or use Nintendo's secure websites, news groups, developer conferences or similar collaborative or teaching sessions, and any information contained therein;
and (g) this Agreement and its terms and conditions, and any communications related thereto.
5. Location. Company will keep the Confidential Information only at its secure location(s) and its Subsidiaries secure location(s) approved by Nintendo.
Source:
https://www.warioworld.com/apply/devapplication.asp
Except for neuroimaging/telepathy, I can think of no other ways of communication with which you could tell confidential things about Wii U without breaking the NDA.