Seeing as the 3DS has better graphics than the DS, I guess they can make crime scenes more appear more violent, and well, while in the previous games there was even censoring for wine, being called grape juice (I always lol when I read the spilled grape juice part. z.z). I guess they can be more open and allow for more darker crimes this way, although they will lose some sales (but then again, I don't know anyone under 15 that plays games like these nowadays).
This rating is giving me even higher hopes for the game.
Edit: After reading the text in the video... Seems like Wright got involved in a crime or died? And Apollo is investigating? Most likely he'll show up alive and his death wasn't real... Or so I think.
This should be interesting if we are actually getting really mature and dark themes in the game. It may also have something to do with better graphics as earlier games were mostly scenes and items and now we have full 3D enviroments.
As it's download only I'm almost certain most people are harcore fans of series and that may also be why they aren't releasing physical copies as they would fail becouse of high age rating.
A little surprised that it got an M rating but O well won't stop me from picking it up when its released. Famitsu gave it a 37/40 which is pretty good although I know a lot of people who think Famitsu scores are bit too nice/forgiving. Either way I am getting it no matter what.