It's the one question that's been asked since Diablo III was officially announced in 2008, and one Blizzard has never really answered. We know a beta test is coming soon, but as of yet still don't have a hard release date for Blizzard's anticipated action-role-playing game. It's not entirely surprising Blizzard typically holds off on setting a release date for as long as possible, as Rob Pardo, executive producer on Diablo III explains...