Capcom product manager Mike Lunn said on game's PlayStation Blog announcement the decision was taken in order to offer a more immersive game.The Revelations wont be ported to Sony's handheld for two simple reasons:
"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, [and so on]," Lunn said. "This type of setup really helps players get sucked into the horror vibe and enjoy the game to its fullest extent."
He also mentions that developing games for the screen of that size is not easy, both 3DS and PS screens have different resolution/ functions.
"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," he said.
Resident Evil: Revelations will have improved visuals and enhanced lighting effects, new enemy type, more difficulty level and improvements to the Raid mode.
You can also register for Revelations-themed content. Resident Evil Revelations will be available May 21st in North America (May 24th for our Euro friends) on PS3 via retail disc or as a day-one digital download on PSN for $49.99.