Hi,
For us to support wii U, it's important we get in relation with Nintendo. So contact your nintendo manager and explain him your need for PlayMaker support. You can cc us and redirect communication to me or Alex.
The cost of the development kit if difficult to justify here, and so I think the best way (at least for me currently) to provide proper support would be to get access to a dev kit, knowing that I would not create games, this would be solely to support PlayMaker users.
I have been in touch with nintendo, but I don't think I expressed myself properly, or maybe they don't see why they should send us a dev kit, so the more they know about PlayMaker from you, the better.
Bye,
Jean