Sony Computer Entertainment Inc. (SCE) today announced that it will introduce dedicated applications for Facebook, foursquare, Skype™ and Twitter*1 to PlayStation®Vita (PS Vita) which will launch in Japan by the end of 2011, followed by the U.S. and Europe early next year*2. PS Vita users will not only be able to enjoy the immersive rich gaming content but through the addition of these social networking ser ...