Whether this video is faked or not is still the question. It certainly looks genuine, and we all know that the R4iDSN team certainly have the expertise to do it. Assuming that they have indeed hacked the DSi Mode on the 3DS, this means that Nintendo are going to face genuine embarassment - they've been hyping their new security features and learning from past failures on Wii and DS homebrew enabling and flashcarts, and a team manages to break their hype claims on the first day. Hmm.
We'll keep you updated on new outcomes, but for now, we're just going to leave this here. ~http://www.r4idsn.com/index.htm