Partly because it's a new system and partly because Nintendo have shrouded some elements in secrecy and confusion I though a simple Q&A thread would be useful. Somewhere you can ask questions and get them answered. Try not to use this for too much discussion, lets keep it to Questions and where people have them Answers.
So Question and an Answer from me, plus a couple of Questions ...
[Q] Can you change the battery on the screened controller?
[A] From the pictures of the pad it looks like there is a decent sized hole on the back which would accommodate this.
[Q] Have they altered the sync process from the Wii? (I guess not as it supports Wii controllers)
[Q] In games which support Wii-motes used on their side (like a regular controller) can you use a Wii-U pro-controller instead?