It looks like 3DS may very well be Nintendo's final name for its new 3D DS system.
Recent trademark filings have popped up in Japan for a number of terms involving the name 3DS:
Nintendo 3DS
3DSWare
Nintendo 3DSWare
N3DS
3DSPlay
Click on the link below to read more
Nintendo Trademarks Lots of 3DS Terms
Recent trademark filings have popped up in Japan for a number of terms involving the name 3DS:
Nintendo 3DS
3DSWare
Nintendo 3DSWare
N3DS
3DSPlay
Click on the link below to read more
Nintendo Trademarks Lots of 3DS Terms