What's the difference between Sony's PlayStation Vita and the PS3? About 256MB of RAM, apparently. In a recent interview with Eurogamer, Sony Worldwide Studios president Shuhei Yoshida confirmed that the forthcoming handheld will boast a full 512MB of RAM (compared to the PS3's 256MB), allowing the Vita to support cross-game voice chat via its Party feature. Yoshida's confirmation effectively debunks earlier rumors that Sony would be halving the Vita's RAM, in order to compete with the 3DS' lower price, though the console does feature comparatively less V-RAM (jus