There was some info that came out today about how the Wii U's voice chat will work. Bulletpoints below.
- will support in-game voice chat
- will only work for "select games"
- games supported are Assassin's Creed III, Call of Duty Black Ops II and Mass Effect 3
- cannot use GamePad microphone
- have to use a headset
- Wii U Pro Controller doesn't have headphone jack
- If you want voice chat while using Pro Controller, you have to plug into the GamePad
- PDP offering wireless headset
Source:
GoNintendo^Who got it from Kotaku
Basically that's saying there isn't cross-game chat like there is with Xbox Live. The game has to support it. This doesn't really bother me that much.
Info about Turtle Beach Headsets here:
http://wiiunite.smfforfree3.com/index.php/topic,22984.msg439663.html#msg439663