Here's some disappointing news for anyone hoping for a sneak peek at Half-Life 2: Episode 3, or any other Valve titles at this year's E3 Expo. The developer/publisher has confirmed the details of its E3 presence, and it's a presence that doesn't involve demonstrating any games on the show floor.
Valve's Dough Lombardi is quoted on IGN 360 saying that "[Valve is] not showing any titles at this year's show. So no appointment is needed", though IGN notes that this doesn't technically rule out any announcements from Valve. Still, we're a little disappointed that we won't be seeing more from one of gaming's biggest names.