At the moment I'm dreaming of a world where you put on a mask and you are instantly transported into a game, where you really are your character. You can move your arms like you do in real life, you can talk to people like you'd do in real life, basically you would actually BE your created character.
Then again after prolong usage it would be hard to distinguish reality from that game. And hell, what if somebody hacks into your mind and starts controlling you?...what was I talking about?