E3 2011: Halo 4 Teaser Creates Huge Buzz, But is That All from Microsoft?

Millions of gamers all over the world are excited to hear that a fourth Halo is on its way (with Master Chief, no less). But other than this one massive announcement, was Microsoft's MSFT E3 press conference a bust? Like or loathe the Xbox maker's presentation, let's kick back and drool over this tantalizing teaser.