One day it's possibly leaked testing hardware, the next it's a list of trademarks: the Internet Rumour Mill is operating at full steam ahead these days.
According to a list discovered by forum members over at NeoGAF, Nintendo has registered trademarks including DSMovie, DSMagazine and DSCinema. The most interesting of these is of course 3DSWare, which points the way towards downloadable titles available for the new console just like the DSi's DSiWare.
It's likely not all of these marks will be used by Nintendo as it's not uncommon for companies to register names to cover their bases, and sadly none give much insight into the console's true name, but if it's guaranteed to have DSiWare-style downloads then that's an awesome discovery indeed.
Here's the list of trademarks:
商願2010-021055 ＤＳ Ｓｏｕｎｄ
商願2010-021086 ＤＳ Ｎａｍｅ Ｃａｒｄ
商願2010-021710 Ｎｉｎｔｅｎｄｏ ３ＤＳ
商願2010-021711 ニンテンドー３ＤＳ (Nintendo 3DS)
商願2010-021713 Ｎｉｎｔｅｎｄｏ ３ＤＳＷａｒｅ