Nope,
"The expo is a strictly over-18 event. It is only open to game industry professionals, journalists, and guests of exhibitors, such as celebrities"
"On July 31, 2006, it was announced that the expo would be downsized and restructured. Essentially, the Eł "Trade Show" has been cancelled, replaced with a much lower-key and inaccessible event or series of events. Eł is now called the Eł Media Festival, making the full name the "Electronic Entertainment Expo Media Festival."
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http://en.wikipedia.org/wiki/E3