According to E3.net and various excited internet reports, Half-Life 2: Episode Three will be making its debut appearance at E3, just a few weeks away. According to the site, it will also be joined by titles like Kid Icarus and Animal Crossing for Wii. That'd be great news, if E3.net were the official E3 site, as some reports have claimed, and not an unofficial UGO owned web site.
According to Valve's marketing director Doug Lombardi Half-Life 2: Episode Three won't be making an appearance at E3 this year, with the listing chalked up to a "misprint (or something)". We would assume that if Valve is showcasing anything at E3 this year, it will be Left 4 Dead which is planned for a November 4 release.