Rejoice! The 3DS finally has a release date, and as you’re probably only here due to having read the above headline, I won’t insult your intelligence nor waste your time by repeating it. So I guess that holiday release everyone was predicting is out the window. But you can wait for a host of N64-era titles in 3D, right? Of course you can. You’re pretty fly. But what else has the 3DS got in store? Much, apparently. Not the least of the most important features is the ability to move all your old DSiWare from your DSi or XL to the 3DS – something I for one am especially excited about, if only because if Nintendo…