“When we were developing Revelations for new platforms we really wanted to hone in on the experience you get with a large format screen, surround sound, etc. This type of setup really helps players get sucked into the horror vibe and enjoy the game to its fullest extent. […] 3DS and PS-vita infrastructure let alone developing games for them are extremely different beasts. Even just the screens as you mention are completely different resolutions/functions.”
This information came despite the fact that the game is scheduled to be released to Xbox 360, PS3, Wii U, and PC.