Last week, Valve announced the cancellation of a press conference dedicated to Portal 2, which was scheduled around the time of E3 at the LA Regal Theater. In exchange, the company promised to share a surprise during the festivities, but specifics were and still are scant. With details lacking, folks have been doing the only thing they can do: postulate.

One of the more rational theories suggested the surprise was in some way related to the overdue Half-Life 2: Episode 3. We hate to be the bearer of bad news, but it just isn't so. When the guys over at Halflife2.net asked the company whether the surprise was Episode 3, Valve boss Gabe Newell succinctly replied, "it isn't Ep 3."

Newell also put another rumor to bed in another email. A supposed Half-Life teaser image began circulating after Valve announced the surprise, but Newell acknowledged this as a fake, thus leaving gamers to stew in their own thoughts until June 14. So, if the big secret isn't HL2: E3, then what is it?