Soundwave on 10 December 2015
Also this points more and more to a NX release in 2016.
From the original Sharp-Nintendo freeform report:
http://www.theverge.com/2014/12/16/7406585/nintendo-said-to-use-sharp-free-form-displays
"Kyodo's report says that mass production of the Free-Form Display is set to begin early 2016."
That lines up pretty much exactly with other reports we've heard of NX mass production beginning in the 1st half of 2016.
